Template:Periodic table (metalloid border)
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1 | 2 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |||
H | He | ||||||||||
Li | Be | B | C | N | O | F | Ne | ||||
Na | Mg | Al | Si | P | S | Cl | Ar | ||||
K | Ca | Zn | Ga | Ge | As | Se | Br | Kr | |||
Rb | Sr | Cd | In | Sn | Sb | Te | I | Xe | |||
Cs | Ba | Hg | Tl | Pb | Bi | Po | At | Rn | |||
Fr | Ra | Cn | Nh | Fl | Mc | Lv | Ts | Og | |||
Commonly (93%) to rarely (9%) recognised as a
metalloid: B, C, Al, Si, Ge, As, Se, Sb, Te, Po, At Very rarely (1–5%): H, Be, P, S, Ga, Sn, I, Pb, Bi, Fl, Mc, Lv, Ts
Sporadically: N, Zn, Rn
Metal–nonmetal dividing line: between H and Li, Be and B, Al and Si, Ge and As, Sb and Te, Po and At, and Ts and Og
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Periodic table extract showing groups 1–2 and 12–18, and a dividing line between metals and nonmetals. Percentages are median appearance frequencies in the list of metalloid lists. Sporadically recognised elements show that the metalloid net is sometimes cast very widely; although they do not appear in the list of metalloid lists, isolated references to their designation as metalloids can be found in the literature (as cited in this article). |