ABCDEFGHIJKLMNOPQRSTUVWXYZ
1
ZNameSymbolAverage
atomic mass
Electronegativity
(Pauling)
First Ionization
Energy (eV)
Radii (pm)Valence
electrons
Average atomic mass cleaned
2
AtomicVan der WaalsCovalent
3
2HeliumHe4.002602024.58741311403224,002602
4
10NeonNe20.1797021.56463815469820,1797
5
18ArgonAr39.948015.759627118897839,948
6
61PromethiumPm14505.5821852145
7
63EuropiumEu151.96405.67041852151,964
8
65TerbiumTb158.9253505.86381752158,92535
9
70YtterbiumYb173.05406.254161752173,054
10
86RadonRn222010.74851201458222
11
104RutherfordiumRf267062267
12
105DubniumDb26802268
13
106SeaborgiumSg26902269
14
107BohriumBh27002270
15
108HassiumHs27702277
16
109MeitneriumMt2780278
17
110DarmstadtiumDs2810281
18
111RoentgeniumRg2820282
19
112CoperniciumCn2850285
20
113NihoniumNh2860286
21
114FleroviumFl2890289
22
115MoscoviumMc2900290
23
116LivermoriumLv2930293
24
117TennessineTs2940294
25
118OganessonOg2940294
26
87FranciumFr2230,74.07271223
27
55CaesiumCs132.90545190,793.89392602251132,9054519
28
19PotassiumK39.09830,824.34066220275196139,0983
29
37RubidiumRb85.46780,824.17713235211185,4678
30
56BariumBa137.3270,895.21172151982137,327
31
88RadiumRa2260,95.27842152226
32
11SodiumNa22.989769280,935.13908180227154122,98976928
33
38StrontiumSr87.620,955.6949200192287,62
34
3LithiumLi6.9410,985.3917214518213416,941
35
20CalciumCa40.07816.11316180174240,078
36
57LanthanumLa138.905471,15.57691951692138,90547
37
89ActiniumAc2271,15.171952227
38
58CeriumCe140.1161,125.53871852140,116
39
59PraseodymiumPr140.907651,135.4731852140,90765
40
60NeodymiumNd144.2421,145.5251852144,242
41
62SamariumSm150.361,175.64361852150,36
42
64GadoliniumGd157.251,26.15011802157,25
43
39YttriumY88.905851,226.2171180162288,90585
44
66DysprosiumDy162.5001,225.93891752162,5
45
67HolmiumHo164.930321,236.02151752164,93032
46
68ErbiumEr167.2591,246.10771752167,259
47
69ThuliumTm168.934211,256.184311752168,93421
48
71LutetiumLu174.96681,275.42591751602174,9668
49
94PlutoniumPu2441,286.02621752244
50
72HafniumHf178.491,36.825071551502178,49
51
90ThoriumTh232.038061,36.30671802232,03806
52
95AmericiumAm2431,35.97381752243
53
96CuriumCm2471,35.99152247
54
97BerkeliumBk2471,36.19792247
55
98CaliforniumCf2511,36.28172251
56
99EinsteiniumEs2521,36.422252
57
100FermiumFm2571,36.52257
58
101MendeleviumMd2581,36.582258
59
102NobeliumNo2591,36.652259
60
103LawrenciumLr2661,34.93266
61
12MagnesiumMg24.30501,317.64624150173130224,305
62
40ZirconiumZr91.2241,336.6339155148291,224
63
21ScandiumSc44.9559121,366.5615160144244,955912
64
93NeptuniumNp2371,366.26571752237
65
92UraniumU238.028911,386.194051751862238,02891
66
73TantalumTa180.947881,57.54961451382180,94788
67
91ProtactiniumPa231.035881,55.891802231,03588
68
22TitaniumTi47.8671,546.8281140136247,867
69
25ManganeseMn54.9380451,557.43402140139254,938045
70
4BerylliumBe9.0121821,579.32271059029,012182
71
41NiobiumNb92.906381,66.75885145137192,90638
72
13AluminiumAl26.98153861,615.98577125118326,9815386
73
81ThalliumTl204.38331,626.10821901961483204,3833
74
23VanadiumV50.94151,636.7462135125250,9415
75
30ZincZn65.381,659.3942135139131265,38
76
24ChromiumCr51.99611,666.7665140127151,9961
77
48CadmiumCd112.4111,698.99381551581482112,411
78
49IndiumIn114.8181,785.786361551931443114,818
79
31GalliumGa69.7231,815.9993130187126369,723
80
26IronFe55.8451,837.9024140125255,845
81
28NickelNi58.69341,887.881135126258,6934
82
14SiliconSi28.08551,98.15169110210111428,0855
83
29CopperCu63.5461,97.72638135140138163,546
84
43TechnetiumTc981,97.28135156198
85
75RheniumRe186.2071,97.83351351592186,207
86
27CobaltCo58.9331951,917.6398135163121258,933195
87
47SilverAg107.86821,937.57621601721531107,8682
88
50TinSn118.7101,967.34391452171414118,71
89
80MercuryHg200.59210.43751501551492200,59
90
84PoloniumPo20928.4171906209
91
32GermaniumGe72.632,017.8994125122472,63
92
83BismuthBi208.980402,027.28561601465208,9804
93
5BoronB10.8112,048.298038582310,811
94
51AntimonySb121.7602,058.60841451385121,76
95
52TelluriumTe127.602,19.19961402061356127,6
96
42MolybdenumMo95.962,167.09243145145195,96
97
33ArsenicAs74.921602,189.7886115185119574,9216
98
15PhosphorusP30.9737622,1910.48669100180106530,973762
99
1HydrogenH1.0072,213.59844251203811,007
100
44RutheniumRu101.072,27.36051301261101,07