RTECS Number
1HHydrogenMW8900000
2HeHeliumMH6520000
3LiLithiumOJ5540000
4BeBerylliumDS1750000
5BBoronED7350000
6CCarbonHL4158550
7NNitrogenQW9700000
8OOxygenRS2060000
9FFluorineLM6475000
10NeNeonQP4450000
11NaSodiumVY0686000
13AlAluminiumBD0330000
14SiSiliconVW0400000
15PPhosphorusTH3495000
16SSulphurWS4250000
17ClChlorineFO2100000
18ArArgonCF2300000
19KPotassiumTS6460000
24CrChromiumGB4200000
26FeIronNO4565500
27CoCobaltGF8750000
28NiNickelQR5950000
29CuCopperGL5325000
30ZnZincZG8600000
31GaGaliumLW8600000
32GeGermaniumLY5200000
33AsArsenicCG0525000
34SeSeleniumVS7700000
35BrBromineEF9100000
36KrKryptonOC6772500
37RbRubidiumVL8500000
39YYttriumZG2980000
41NbNiobiumQT9900000
42MoMolybdenumQA4680000
45RhRhodiumVI9069000
46PdPalladiumRT3480500
47AgSilverVW3500000
48CdCadmiumEU9800000
49InIndiumNL1050000
50SnTinXP7320000
51SbAntimonyCC4025000
52TeTelluriumWY2625000
53IIodineNN1575000
54XeXenonZE1280000
55CsCaesiumFK9225000
56BaBariumCQ8370000
60NdNeodymiumQO8575000
64GdGadoliniumLW3850000
70YbYtterbiumZG1925000
72HfHafniumMG4600000
73TaTantalumWW5505000
74WTungstenYO7175000
75ReRheniumVI0780000
76OsOsmiumRN1100000
78PtPlatinumTP2160000
79AuGoldMD5070000
80HgMercuryOV4550000
81TlThalliumXG3425000
82PbLeadOF7525000
83BiBismuthEB2600000
86RnRadonVE3750000
90ThThoriumXO6400000
92UUraniumYR3490000