Tɛmplet:List of chemical elements

Element Origin of name[1][2] Group Period Block Standard
atomic
weight
Ar°(E)[lower-alpha 1]
Density[lower-alpha 2][lower-alpha 3] Melting point[lower-alpha 4] Boiling point[lower-alpha 5] Specific
heat
capacity
[lower-alpha 6]
Electro­negativity[lower-alpha 7] Abundance
in Earth's
crust
[lower-alpha 8]
Origin[lower-alpha 9] Phase at r.t.[lower-alpha 10]
Atomic number
Z
Symbol Name (Da) (g/cm3) (K) (K) (J/· K) (mg/kg)
 
1 H H: Hydrogen Greek elements hydro- and -gen, 'water-forming' 1 1 #ff9999" data-sort-value="1001" |#ff9999 1.0080H: 0.00008988 14.01 20.28 14.304 2.20 1400 H: Primordial-wlfirst>Primordial Gas
2 He He: Helium Greek hḗlios, 'sun' 18 1 #ff9999" data-sort-value="1002" |#ff9999 4.0026He: 0.0001785 [lower-alpha 11] 4.22 5.193 0.008 He: Primordial-wlfirst>Primordial Gas
3 Li Li: Lithium Greek líthos, 'stone' 1 2 #ff9999" data-sort-value="1003" |#ff9999 6.94Li: 0.534 453.69 1560 3.582 0.98 20 Li: Primordial-wlfirst>Primordial Solid
4 Be Be: Beryllium Beryl, a mineral (ultimately from the name of Belur in southern India)[3] 2 2 #ff9999" data-sort-value="1004" |#ff9999 9.0122Be: 1.85 1560 2742 1.825 1.57 2.8 Be: Primordial-wlfirst>Primordial Solid
5 B B: Boron Borax, a mineral (from Arabic bawraq, Middle Persian *bōrag) 13 2 #fdff8c" data-sort-value="2005" |#fdff8c 10.81B: 2.34 2349 4200 1.026 2.04 10 B: Primordial-wlfirst>Primordial Solid
6 C C: Carbon Latin carbo, 'coal' 14 2 #fdff8c" data-sort-value="2006" |#fdff8c 12.011C: 2.267 >4000 4300 0.709 2.55 200 C: Primordial-wlfirst>Primordial Solid
7 N N: Nitrogen Greek nítron and -gen, 'niter-forming' 15 2 #fdff8c" data-sort-value="2007" |#fdff8c 14.007N: 0.0012506 63.15 77.36 1.04 3.04 19 N: Primordial-wlfirst>Primordial Gas
8 O O: Oxygen Greek oxy- and -gen, 'acid-forming' 16 2 #fdff8c" data-sort-value="2008" |#fdff8c 15.999O: 0.001429 54.36 90.20 0.918 3.44 461000 O: Primordial-wlfirst>Primordial Gas
9 F F: Fluorine Latin fluere, 'to flow' 17 2 #fdff8c" data-sort-value="2009" |#fdff8c 18.998F: 0.001696 53.53 85.03 0.824 3.98 585 F: Primordial-wlfirst>Primordial Gas
10 Ne Ne: Neon Greek néon, 'new' 18 2 #fdff8c" data-sort-value="2010" |#fdff8c 20.180Ne: 0.0009002 24.56 27.07 1.03 0.005 Ne: Primordial-wlfirst>Primordial Gas
11 Na Na: Sodium English (from medieval Latin) soda
 ·  Symbol Na is derived from Neo-Latin natrium, coined from German Natron, 'natron'
1 3 #ff9999" data-sort-value="1011" |#ff9999 22.990Na: 0.968 370.87 1156 1.228 0.93 23600 Na: Primordial-wlfirst>Primordial Solid
12 Mg Mg: Magnesium Magnesia, a district of Eastern Thessaly in Greece 2 3 #ff9999" data-sort-value="1012" |#ff9999 24.305Mg: 1.738 923 1363 1.023 1.31 23300 Mg: Primordial-wlfirst>Primordial Solid
13 Al Al: Aluminium Alumina, from Latin alumen (gen. aluminis), 'bitter salt, alum' 13 3 #fdff8c" data-sort-value="2013" |#fdff8c 26.982Al: 2.70 933.47 2792 0.897 1.61 82300 Al: Primordial-wlfirst>Primordial Solid
14 Si Si: Silicon Latin silex, 'flint' (originally silicium) 14 3 #fdff8c" data-sort-value="2014" |#fdff8c 28.085Si: 2.3290 1687 3538 0.705 1.9 282000 Si: Primordial-wlfirst>Primordial Solid
15 P P: Phosphorus Greek phōsphóros, 'light-bearing' 15 3 #fdff8c" data-sort-value="2015" |#fdff8c 30.974P: 1.823 317.30 550 0.769 2.19 1050 P: Primordial-wlfirst>Primordial Solid
16 S S: Sulfur Latin sulphur, 'brimstone' 16 3 #fdff8c" data-sort-value="2016" |#fdff8c 32.06S: 2.07 388.36 717.87 0.71 2.58 350 S: Primordial-wlfirst>Primordial Solid
17 Cl Cl: Chlorine Greek chlōrós, 'greenish yellow' 17 3 #fdff8c" data-sort-value="2017" |#fdff8c 35.45Cl: 0.0032 171.6 239.11 0.479 3.16 145 Cl: Primordial-wlfirst>Primordial Gas
18 Ar Ar: Argon Greek argós, 'idle' (because of its inertness) 18 3 #fdff8c" data-sort-value="2018" |#fdff8c 39.95Ar: 0.001784 83.80 87.30 0.52 3.5 Ar: Primordial-wlfirst>Primordial Gas
19 K K: Potassium Neo-Latin potassa, 'potash', itself from pot and ash
 ·  Symbol K is derived from Latin kalium
1 4 #ff9999" data-sort-value="1019" |#ff9999 39.098K: 0.89 336.53 1032 0.757 0.82 20900 K: Primordial-wlfirst>Primordial Solid
20 Ca Ca: Calcium Latin calx, 'lime' 2 4 #ff9999" data-sort-value="1020" |#ff9999 40.078Ca: 1.55 1115 1757 0.647 1.00 41500 Ca: Primordial-wlfirst>Primordial Solid
21 Sc Sc: Scandium Latin Scandia, 'Scandinavia' 3 4 #99ccff" data-sort-value="3021" |#99ccff 44.956Sc: 2.985 1814 3109 0.568 1.36 22 Sc: Primordial-wlfirst>Primordial Solid
22 Ti Ti: Titanium Titans, the sons of the Earth goddess of Greek mythology 4 4 #99ccff" data-sort-value="3022" |#99ccff 47.867Ti: 4.506 1941 3560 0.523 1.54 5650 Ti: Primordial-wlfirst>Primordial Solid
23 V V: Vanadium Vanadis, an Old Norse name for the Scandinavian goddess Freyja 5 4 #99ccff" data-sort-value="3023" |#99ccff 50.942V: 6.11 2183 3680 0.489 1.63 120 V: Primordial-wlfirst>Primordial Solid
24 Cr Cr: Chromium Greek chróma, 'colour' 6 4 #99ccff" data-sort-value="3024" |#99ccff 51.996Cr: 7.15 2180 2944 0.449 1.66 102 Cr: Primordial-wlfirst>Primordial Solid
25 Mn Mn: Manganese Corrupted from magnesia negra; see § magnesium 7 4 #99ccff" data-sort-value="3025" |#99ccff 54.938Mn: 7.21 1519 2334 0.479 1.55 950 Mn: Primordial-wlfirst>Primordial Solid
26 Fe Fe: Iron English word, from Proto-Celtic *īsarnom ('iron'), from a root meaning 'blood'
 ·  Symbol Fe is derived from Latin ferrum
8 4 #99ccff" data-sort-value="3026" |#99ccff 55.845Fe: 7.874 1811 3134 0.449 1.83 56300 Fe: Primordial-wlfirst>Primordial Solid
27 Co Co: Cobalt German Kobold, 'goblin' 9 4 #99ccff" data-sort-value="3027" |#99ccff 58.933Co: 8.90 1768 3200 0.421 1.88 25 Co: Primordial-wlfirst>Primordial Solid
28 Ni Ni: Nickel Nickel, a mischievous sprite of German miner mythology 10 4 #99ccff" data-sort-value="3028" |#99ccff 58.693Ni: 8.908 1728 3186 0.444 1.91 84 Ni: Primordial-wlfirst>Primordial Solid
29 Cu Cu: Copper English word, from Latin cuprum, from Ancient Greek Kýpros 'Cyprus' 11 4 #99ccff" data-sort-value="3029" |#99ccff 63.546Cu: 8.96 1357.77 2835 0.385 1.90 60 Cu: Primordial-wlfirst>Primordial Solid
30 Zn Zn: Zinc Most likely from German Zinke, 'prong' or 'tooth', though some suggest Persian sang, 'stone' 12 4 #99ccff" data-sort-value="3030" |#99ccff 65.38Zn: 7.14 692.88 1180 0.388 1.65 70 Zn: Primordial-wlfirst>Primordial Solid
31 Ga Ga: Gallium Latin Gallia, 'France' 13 4 #fdff8c" data-sort-value="2031" |#fdff8c 69.723Ga: 5.91 302.9146 2673 0.371 1.81 19 Ga: Primordial-wlfirst>Primordial Solid
32 Ge Ge: Germanium Latin Germania, 'Germany' 14 4 #fdff8c" data-sort-value="2032" |#fdff8c 72.630Ge: 5.323 1211.40 3106 0.32 2.01 1.5 Ge: Primordial-wlfirst>Primordial Solid
33 As As: Arsenic French arsenic, from Greek arsenikón 'yellow arsenic' (influenced by arsenikós, 'masculine' or 'virile'), from a West Asian wanderword ultimately from Old Iranian *zarniya-ka, 'golden' 15 4 #fdff8c" data-sort-value="2033" |#fdff8c 74.922As: 5.727 1090[lower-alpha 12] 887 0.329 2.18 1.8 As: Primordial-wlfirst>Primordial Solid
34 Se Se: Selenium Greek selḗnē, 'moon' 16 4 #fdff8c" data-sort-value="2034" |#fdff8c 78.971Se: 4.81 453 958 0.321 2.55 0.05 Se: Primordial-wlfirst>Primordial Solid
35 Br Br: Bromine Greek brômos, 'stench' 17 4 #fdff8c" data-sort-value="2035" |#fdff8c 79.904Br: 3.1028 265.8 332.0 0.474 2.96 2.4 Br: Primordial-wlfirst>Primordial Liquid
36 Kr Kr: Krypton Greek kryptós, 'hidden' 18 4 #fdff8c" data-sort-value="2036" |#fdff8c 83.798Kr: 0.003749 115.79 119.93 0.248 3.00 1×10−4 Kr: Primordial-wlfirst>Primordial Gas
37 Rb Rb: Rubidium Latin rubidus, 'deep red' 1 5 #ff9999" data-sort-value="1037" |#ff9999 85.468Rb: 1.532 312.46 961 0.363 0.82 90 Rb: Primordial-wlfirst>Primordial Solid
38 Sr Sr: Strontium Strontian, a village in Scotland, where it was found 2 5 #ff9999" data-sort-value="1038" |#ff9999 87.62Sr: 2.64 1050 1655 0.301 0.95 370 Sr: Primordial-wlfirst>Primordial Solid
39 Y Y: Yttrium Ytterby, Sweden, where it was found; see also terbium, erbium, ytterbium 3 5 #99ccff" data-sort-value="3039" |#99ccff 88.906Y: 4.472 1799 3609 0.298 1.22 33 Y: Primordial-wlfirst>Primordial Solid
40 Zr Zr: Zirconium Zircon, a mineral, from Persian zargun, 'gold-hued' 4 5 #99ccff" data-sort-value="3040" |#99ccff 91.224Zr: 6.52 2128 4682 0.278 1.33 165 Zr: Primordial-wlfirst>Primordial Solid
41 Nb Nb: Niobium Niobe, daughter of king Tantalus from Greek mythology; see also tantalum 5 5 #99ccff" data-sort-value="3041" |#99ccff 92.906Nb: 8.57 2750 5017 0.265 1.6 20 Nb: Primordial-wlfirst>Primordial Solid
42 Mo Mo: Molybdenum Greek molýbdaina, 'piece of lead', from mólybdos, 'lead', due to confusion with lead ore galena (PbS) 6 5 #99ccff" data-sort-value="3042" |#99ccff 95.95Mo: 10.28 2896 4912 0.251 2.16 1.2 Mo: Primordial-wlfirst>Primordial Solid
43 Tc Tc: Technetium Greek tekhnētós, 'artificial' 7 5 #99ccff" data-sort-value="3043" |#99ccff Tc: [97][lower-alpha 1] 11 2430 4538 1.9 ~ 3×10−9 Tc: From decay-wlfirst>From decay Solid
44 Ru Ru: Ruthenium Neo-Latin Ruthenia, 'Russia' 8 5 #99ccff" data-sort-value="3044" |#99ccff 101.07Ru: 12.45 2607 4423 0.238 2.2 0.001 Ru: Primordial-wlfirst>Primordial Solid
45 Rh Rh: Rhodium Greek rhodóeis, 'rose-coloured', from rhódon, 'rose' 9 5 #99ccff" data-sort-value="3045" |#99ccff 102.91Rh: 12.41 2237 3968 0.243 2.28 0.001 Rh: Primordial-wlfirst>Primordial Solid
46 Pd Pd: Palladium Pallas, an asteroid, considered a planet at the time 10 5 #99ccff" data-sort-value="3046" |#99ccff 106.42Pd: 12.023 1828.05 3236 0.244 2.20 0.015 Pd: Primordial-wlfirst>Primordial Solid
47 Ag Ag: Silver English word
 ·  Symbol Ag is derived from Latin argentum
11 5 #99ccff" data-sort-value="3047" |#99ccff 107.87Ag: 10.49 1234.93 2435 0.235 1.93 0.075 Ag: Primordial-wlfirst>Primordial Solid
48 Cd Cd: Cadmium Neo-Latin cadmia, from King Kadmos 12 5 #99ccff" data-sort-value="3048" |#99ccff 112.41Cd: 8.65 594.22 1040 0.232 1.69 0.159 Cd: Primordial-wlfirst>Primordial Solid
49 In In: Indium Latin indicum, 'indigo', the blue colour found in its spectrum 13 5 #fdff8c" data-sort-value="2049" |#fdff8c 114.82In: 7.31 429.75 2345 0.233 1.78 0.25 In: Primordial-wlfirst>Primordial Solid
50 Sn Sn: Tin English word
 ·  Symbol Sn is derived from Latin stannum
14 5 #fdff8c" data-sort-value="2050" |#fdff8c 118.71Sn: 7.265 505.08 2875 0.228 1.96 2.3 Sn: Primordial-wlfirst>Primordial Solid
51 Sb Sb: Antimony Latin antimonium, the origin of which is uncertain: folk etymologies suggest it is derived from Greek antí ('against') + mónos ('alone'), or Old French anti-moine, 'Monk's bane', but it could plausibly be from or related to Arabic ʾiṯmid, 'antimony', reformatted as a Latin word
 ·  Symbol Sb is derived from Latin stibium 'stibnite'
15 5 #fdff8c" data-sort-value="2051" |#fdff8c 121.76Sb: 6.697 903.78 1860 0.207 2.05 0.2 Sb: Primordial-wlfirst>Primordial Solid
52 Te Te: Tellurium Latin tellus, 'the ground, earth' 16 5 #fdff8c" data-sort-value="2052" |#fdff8c 127.60Te: 6.24 722.66 1261 0.202 2.1 0.001 Te: Primordial-wlfirst>Primordial Solid
53 I I: Iodine French iode, from Greek ioeidḗs, 'violet' 17 5 #fdff8c" data-sort-value="2053" |#fdff8c 126.90I: 4.933 386.85 457.4 0.214 2.66 0.45 I: Primordial-wlfirst>Primordial Solid
54 Xe Xe: Xenon Greek xénon, neuter form of xénos 'strange' 18 5 #fdff8c" data-sort-value="2054" |#fdff8c 131.29Xe: 0.005894 161.4 165.03 0.158 2.60 3×10−5 Xe: Primordial-wlfirst>Primordial Gas
55 Cs Cs: Caesium Latin caesius, 'sky-blue' 1 6 #ff9999" data-sort-value="1055" |#ff9999 132.91Cs: 1.93 301.59 944 0.242 0.79 3 Cs: Primordial-wlfirst>Primordial Solid
56 Ba Ba: Barium Greek barýs, 'heavy' 2 6 #ff9999" data-sort-value="1056" |#ff9999 137.33Ba: 3.51 1000 2170 0.204 0.89 425 Ba: Primordial-wlfirst>Primordial Solid
57 La La: Lanthanum Greek lanthánein, 'to lie hidden' f-block groups 6 #9bff99" data-sort-value="4057" |#9bff99 138.91La: 6.162 1193 3737 0.195 1.1 39 La: Primordial-wlfirst>Primordial Solid
58 Ce Ce: Cerium Ceres, a dwarf planet, considered a planet at the time f-block groups 6 #9bff99" data-sort-value="4058" |#9bff99 140.12Ce: 6.770 1068 3716 0.192 1.12 66.5 Ce: Primordial-wlfirst>Primordial Solid
59 Pr Pr: Praseodymium Greek prásios dídymos, 'green twin' f-block groups 6 #9bff99" data-sort-value="4059" |#9bff99 140.91Pr: 6.77 1208 3793 0.193 1.13 9.2 Pr: Primordial-wlfirst>Primordial Solid
60 Nd Nd: Neodymium Greek néos dídymos, 'new twin' f-block groups 6 #9bff99" data-sort-value="4060" |#9bff99 144.24Nd: 7.01 1297 3347 0.19 1.14 41.5 Nd: Primordial-wlfirst>Primordial Solid
61 Pm Pm: Promethium Prometheus, a figure in Greek mythology f-block groups 6 #9bff99" data-sort-value="4061" |#9bff99 Pm: [145] 7.26 1315 3273 1.13 2×10−19 Pm: From decay-wlfirst>From decay Solid
62 Sm Sm: Samarium Samarskite, a mineral named after V. Samarsky-Bykhovets, Russian mine official f-block groups 6 #9bff99" data-sort-value="4062" |#9bff99 150.36Sm: 7.52 1345 2067 0.197 1.17 7.05 Sm: Primordial-wlfirst>Primordial Solid
63 Eu Eu: Europium Europe f-block groups 6 #9bff99" data-sort-value="4063" |#9bff99 151.96Eu: 5.244 1099 1802 0.182 1.2 2 Eu: Primordial-wlfirst>Primordial Solid
64 Gd Gd: Gadolinium Gadolinite, a mineral named after Johan Gadolin, Finnish chemist, physicist and mineralogist f-block groups 6 #9bff99" data-sort-value="4064" |#9bff99 157.25Gd: 7.90 1585 3546 0.236 1.2 6.2 Gd: Primordial-wlfirst>Primordial Solid
65 Tb Tb: Terbium Ytterby, Sweden, where it was found; see also yttrium, erbium, ytterbium f-block groups 6 #9bff99" data-sort-value="4065" |#9bff99 158.93Tb: 8.23 1629 3503 0.182 1.2 1.2 Tb: Primordial-wlfirst>Primordial Solid
66 Dy Dy: Dysprosium Greek dysprósitos, 'hard to get' f-block groups 6 #9bff99" data-sort-value="4066" |#9bff99 162.50Dy: 8.540 1680 2840 0.17 1.22 5.2 Dy: Primordial-wlfirst>Primordial Solid
67 Ho Ho: Holmium Neo-Latin Holmia, 'Stockholm' f-block groups 6 #9bff99" data-sort-value="4067" |#9bff99 164.93Ho: 8.79 1734 2993 0.165 1.23 1.3 Ho: Primordial-wlfirst>Primordial Solid
68 Er Er: Erbium Ytterby, Sweden, where it was found; see also yttrium, terbium, ytterbium f-block groups 6 #9bff99" data-sort-value="4068" |#9bff99 167.26Er: 9.066 1802 3141 0.168 1.24 3.5 Er: Primordial-wlfirst>Primordial Solid
69 Tm Tm: Thulium Thule, the ancient name for an unclear northern location f-block groups 6 #9bff99" data-sort-value="4069" |#9bff99 168.93Tm: 9.32 1818 2223 0.16 1.25 0.52 Tm: Primordial-wlfirst>Primordial Solid
70 Yb Yb: Ytterbium Ytterby, Sweden, where it was found; see also yttrium, terbium, erbium f-block groups 6 #9bff99" data-sort-value="4070" |#9bff99 173.05Yb: 6.90 1097 1469 0.155 1.1 3.2 Yb: Primordial-wlfirst>Primordial Solid
71 Lu Lu: Lutetium Latin Lutetia, 'Paris' 3 6 #99ccff" data-sort-value="3071" |#99ccff 174.97Lu: 9.841 1925 3675 0.154 1.27 0.8 Lu: Primordial-wlfirst>Primordial Solid
72 Hf Hf: Hafnium Neo-Latin Hafnia, 'Copenhagen' (from Danish havn, harbour) 4 6 #99ccff" data-sort-value="3072" |#99ccff 178.49Hf: 13.31 2506 4876 0.144 1.3 3 Hf: Primordial-wlfirst>Primordial Solid
73 Ta Ta: Tantalum King Tantalus, father of Niobe from Greek mythology; see also niobium 5 6 #99ccff" data-sort-value="3073" |#99ccff 180.95Ta: 16.69 3290 5731 0.14 1.5 2 Ta: Primordial-wlfirst>Primordial Solid
74 W W: Tungsten Swedish tung sten, 'heavy stone'
 ·  Symbol W is from Wolfram, originally from Middle High German wolf-rahm 'wolf's foam' describing the mineral wolframite[4]
6 6 #99ccff" data-sort-value="3074" |#99ccff 183.84W: 19.25 3695 5828 0.132 2.36 1.3 W: Primordial-wlfirst>Primordial Solid
75 Re Re: Rhenium Latin Rhenus, 'the Rhine' 7 6 #99ccff" data-sort-value="3075" |#99ccff 186.21Re: 21.02 3459 5869 0.137 1.9 7×10−4 Re: Primordial-wlfirst>Primordial Solid
76 Os Os: Osmium Greek osmḗ, 'smell' 8 6 #99ccff" data-sort-value="3076" |#99ccff 190.23Os: 22.59 3306 5285 0.13 2.2 0.002 Os: Primordial-wlfirst>Primordial Solid
77 Ir Ir: Iridium Iris, the Greek goddess of the rainbow 9 6 #99ccff" data-sort-value="3077" |#99ccff 192.22Ir: 22.56 2719 4701 0.131 2.20 0.001 Ir: Primordial-wlfirst>Primordial Solid
78 Pt Pt: Platinum Spanish platina, 'little silver', from plata 'silver' 10 6 #99ccff" data-sort-value="3078" |#99ccff 195.08Pt: 21.45 2041.4 4098 0.133 2.28 0.005 Pt: Primordial-wlfirst>Primordial Solid
79 Au Au: Gold English word, from the same root as 'yellow'
 ·  Symbol Au is derived from Latin aurum
11 6 #99ccff" data-sort-value="3079" |#99ccff 196.97Au: 19.3 1337.33 3129 0.129 2.54 0.004 Au: Primordial-wlfirst>Primordial Solid
80 Hg Hg: Mercury (element) Mercury, Roman god of commerce, communication, and luck, known for his speed and mobility
 ·  Symbol Hg is derived from its Latin name hydrargyrum, from Greek hydrárgyros, 'water-silver'
12 6 #99ccff" data-sort-value="3080" |#99ccff 200.59Hg: 13.534 234.43 629.88 0.14 2.00 0.085 Hg: Primordial-wlfirst>Primordial Liquid
81 Tl Tl: Thallium Greek thallós, 'green shoot or twig' 13 6 #fdff8c" data-sort-value="2081" |#fdff8c 204.38Tl: 11.85 577 1746 0.129 1.62 0.85 Tl: Primordial-wlfirst>Primordial Solid
82 Pb Pb: Lead English word, from Proto-Celtic *ɸloudom, from a root meaning 'flow'
 ·  Symbol Pb is derived from Latin plumbum
14 6 #fdff8c" data-sort-value="2082" |#fdff8c 207.2Pb: 11.34 600.61 2022 0.129 1.87 (2+)
2.33 (4+)
14 Pb: Primordial-wlfirst>Primordial Solid
83 Bi Bi: Bismuth German Wismut, from weiß Masse 'white mass', unless from Arabic 15 6 #fdff8c" data-sort-value="2083" |#fdff8c 208.98Bi: 9.78 544.7 1837 0.122 2.02 0.009 Bi: Primordial-wlfirst>Primordial Solid
84 Po Po: Polonium Latin Polonia, 'Poland', home country of Marie Curie 16 6 #fdff8c" data-sort-value="2084" |#fdff8c Po: [209][lower-alpha 1] 9.196 527 1235 2.0 2×10−10 Po: From decay-wlfirst>From decay Solid
85 At At: Astatine Greek ástatos, 'unstable' 17 6 #fdff8c" data-sort-value="2085" |#fdff8c At: [210] (8.91–8.95) 575 610 2.2 3×10−20 At: From decay-wlfirst>From decay Unknown phase
86 Rn Rn: Radon Radium emanation, originally the name of the isotope Radon-222 18 6 #fdff8c" data-sort-value="2086" |#fdff8c Rn: [222] 0.00973 202 211.3 0.094 2.2 4×10−13 Rn: From decay-wlfirst>From decay Gas
87 Fr Fr: Francium France, home country of discoverer Marguerite Perey 1 7 #ff9999" data-sort-value="1087" |#ff9999 Fr: [223] (2.48) 281 890 >0.79[5] ~ 1×10−18 Fr: From decay-wlfirst>From decay Unknown phase
88 Ra Ra: Radium French radium, from Latin radius, 'ray' 2 7 #ff9999" data-sort-value="1088" |#ff9999 Ra: [226] 5.5 973 2010 0.094 0.9 9×10−7 Ra: From decay-wlfirst>From decay Solid
89 Ac Ac: Actinium Greek aktís, 'ray' f-block groups 7 #9bff99" data-sort-value="4089" |#9bff99 Ac: [227] 10 1323 3471 0.12 1.1 5.5×10−10 Ac: From decay-wlfirst>From decay Solid
90 Th Th: Thorium Thor, the Scandinavian god of thunder f-block groups 7 #9bff99" data-sort-value="4090" |#9bff99 232.04Th: 11.7 2115 5061 0.113 1.3 9.6 Th: Primordial-wlfirst>Primordial Solid
91 Pa Pa: Protactinium Proto- (from Greek prôtos, 'first, before') + actinium, since actinium is produced through the radioactive decay of protactinium f-block groups 7 #9bff99" data-sort-value="4091" |#9bff99 231.04Pa: 15.37 1841 4300 1.5 1.4×10−6 Pa: From decay-wlfirst>From decay Solid
92 U U: Uranium Uranus, the seventh planet in the Solar System f-block groups 7 #9bff99" data-sort-value="4092" |#9bff99 238.03U: 19.1 1405.3 4404 0.116 1.38 2.7 U: Primordial-wlfirst>Primordial Solid
93 Np Np: Neptunium Neptune, the eighth planet in the Solar System f-block groups 7 #9bff99" data-sort-value="4093" |#9bff99 Np: [237] 20.45 917 4273 1.36 ≤ 3×10−12 Np: From decay-wlfirst>From decay Solid
94 Pu Pu: Plutonium Pluto, a dwarf planet, considered a planet in the Solar System at the time f-block groups 7 #9bff99" data-sort-value="4094" |#9bff99 Pu: [244] 19.85 912.5 3501 1.28 ≤ 3×10−11 Pu: From decay-wlfirst>From decay Solid
95 Am Am: Americium The Americas, where the element was first synthesised, by analogy with its homologue § europium f-block groups 7 #9bff99" data-sort-value="4095" |#9bff99 Am: [243] 12 1449 2880 1.13 Am: Synthetic-wlfirst>Synthetic Solid
96 Cm Cm: Curium Pierre Curie and Marie Curie, French physicists and chemists f-block groups 7 #9bff99" data-sort-value="4096" |#9bff99 Cm: [247] 13.51 1613 3383 1.28 Cm: Synthetic-wlfirst>Synthetic Solid
97 Bk Bk: Berkelium Berkeley, California, where the element was first synthesised f-block groups 7 #9bff99" data-sort-value="4097" |#9bff99 Bk: [247] 14.78 1259 2900 1.3 Bk: Synthetic-wlfirst>Synthetic Solid
98 Cf Cf: Californium California, where the element was first synthesised in the LBNL laboratory f-block groups 7 #9bff99" data-sort-value="4098" |#9bff99 Cf: [251] 15.1 1173 (1743)[lower-alpha 2] 1.3 Cf: Synthetic-wlfirst>Synthetic Solid
99 Es Es: Einsteinium Albert Einstein, German physicist f-block groups 7 #9bff99" data-sort-value="4099" |#9bff99 Es: [252] 8.84 1133 (1269) 1.3 Es: Synthetic-wlfirst>Synthetic Solid
100 Fm Fm: Fermium Enrico Fermi, Italian physicist f-block groups 7 #9bff99" data-sort-value="4100" |#9bff99 Fm: [257] (9.7)[lower-alpha 2] (1125)[6]
(1800)[7]
1.3 Fm: Synthetic-wlfirst>Synthetic Unknown phase
101 Md Md: Mendelevium Dmitri Mendeleev, Russian chemist who proposed the periodic table f-block groups 7 #9bff99" data-sort-value="4101" |#9bff99 Md: [258] (10.3) (1100) 1.3 Md: Synthetic-wlfirst>Synthetic Unknown phase
102 No No: Nobelium Alfred Nobel, Swedish chemist and engineer f-block groups 7 #9bff99" data-sort-value="4102" |#9bff99 No: [259] (9.9) (1100) 1.3 No: Synthetic-wlfirst>Synthetic Unknown phase
103 Lr Lr: Lawrencium Ernest Lawrence, American physicist 3 7 #99ccff" data-sort-value="3103" |#99ccff Lr: [266] (14.4) (1900) 1.3 Lr: Synthetic-wlfirst>Synthetic Unknown phase
104 Rf Rf: Rutherfordium Ernest Rutherford, chemist and physicist from New Zealand 4 7 #99ccff" data-sort-value="3104" |#99ccff Rf: [267] (17) (2400) (5800) Rf: Synthetic-wlfirst>Synthetic Unknown phase
105 Db Db: Dubnium Dubna, Russia, where the element was discovered in the JINR laboratory 5 7 #99ccff" data-sort-value="3105" |#99ccff Db: [268] (21.6) Db: Synthetic-wlfirst>Synthetic Unknown phase
106 Sg Sg: Seaborgium Glenn T. Seaborg, American chemist 6 7 #99ccff" data-sort-value="3106" |#99ccff Sg: [269] (23–24) Sg: Synthetic-wlfirst>Synthetic Unknown phase
107 Bh Bh: Bohrium Niels Bohr, Danish physicist 7 7 #99ccff" data-sort-value="3107" |#99ccff Bh: [270] (26–27) Bh: Synthetic-wlfirst>Synthetic Unknown phase
108 Hs Hs: Hassium Neo-Latin Hassia, 'Hesse', a state in Germany 8 7 #99ccff" data-sort-value="3108" |#99ccff Hs: [269] (27–29) Hs: Synthetic-wlfirst>Synthetic Unknown phase
109 Mt Mt: Meitnerium Lise Meitner, Austrian physicist 9 7 #99ccff" data-sort-value="3109" |#99ccff Mt: [278] (27–28) Mt: Synthetic-wlfirst>Synthetic Unknown phase
110 Ds Ds: Darmstadtium Darmstadt, Germany, where the element was first synthesised in the GSI laboratories 10 7 #99ccff" data-sort-value="3110" |#99ccff Ds: [281] (26–27) Ds: Synthetic-wlfirst>Synthetic Unknown phase
111 Rg Rg: Roentgenium Wilhelm Conrad Röntgen, German physicist 11 7 #99ccff" data-sort-value="3111" |#99ccff Rg: [282] (22–24) Rg: Synthetic-wlfirst>Synthetic Unknown phase
112 Cn Cn: Copernicium Nicolaus Copernicus, Polish astronomer 12 7 #99ccff" data-sort-value="3112" |#99ccff Cn: [285] (14.0) (283±11) (340±10)[lower-alpha 2] Cn: Synthetic-wlfirst>Synthetic Unknown phase
113 Nh Nh: Nihonium Japanese Nihon, 'Japan', where the element was first synthesised in the Riken laboratories 13 7 #fdff8c" data-sort-value="2113" |#fdff8c Nh: [286] (16) (700) (1400) Nh: Synthetic-wlfirst>Synthetic Unknown phase
114 Fl Fl: Flerovium Joint Institute for Nuclear Research, part of JINR, where the element was synthesised; itself named after Georgy Flyorov, Russian physicist 14 7 #fdff8c" data-sort-value="2114" |#fdff8c Fl: [289] (11.4±0.3) (284±50)[lower-alpha 2] Fl: Synthetic-wlfirst>Synthetic Unknown phase
115 Mc Mc: Moscovium Moscow, Russia, where the element was first synthesised in the JINR laboratories 15 7 #fdff8c" data-sort-value="2115" |#fdff8c Mc: [290] (13.5) (700) (1400) Mc: Synthetic-wlfirst>Synthetic Unknown phase
116 Lv Lv: Livermorium Lawrence Livermore National Laboratory in Livermore, California 16 7 #fdff8c" data-sort-value="2116" |#fdff8c Lv: [293] (12.9) (700) (1100) Lv: Synthetic-wlfirst>Synthetic Unknown phase
117 Ts Ts: Tennessine Tennessee, United States, where Oak Ridge National Laboratory is located 17 7 #fdff8c" data-sort-value="2117" |#fdff8c Ts: [294] (7.1–7.3) (700) (883) Ts: Synthetic-wlfirst>Synthetic Unknown phase
118 Og Og: Oganesson Yuri Oganessian, Russian physicist 18 7 #fdff8c" data-sort-value="2118" |#fdff8c Og: [294] (7) (325±15) (450±10) Og: Synthetic-wlfirst>Synthetic Unknown phase
  1. Periodic Table – Royal Society of Chemistry (en).
  2. Online Etymology Dictionary (en).
  3. "beryl". Merriam-Webster. Archived from the original on 9 October 2013. Retrieved 27 January 2014.
  4. van der Krogt, Peter. Wolframium Wolfram Tungsten. Elementymology & Elements Multidict.
  5. Originally assessed as 0.7 by Pauling but never revised after other elements' electronegativities were updated for precision. Predicted to be higher than that of caesium.
  6. "The Thermodynamic Properties of the 𝑓-Elements and Their Compounds. I. The Lanthanide and Actinide Metals". Journal of Physical and Chemical Reference Data. DOI:10.1063/1.3474238.
  7. Fermium.


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