3) Observe na tabela periódica os elementos abaixo e assinale a alternativa que apresenta somente ametais:
a) He, Os, O, B, H
b) He, Ne, Ar, Kr, Xe
c) B, Si, As, Sb, Te
d) Na, Be, Mo, Rb, Ra
e) C, N, P, Br, I, At ​
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