Which of the following is a metal? a. silicon, Si, Z = 14 b. phosphorus, P, Z = 15 c.<

Question

Which of the following is a metal?

a.
silicon, Si, Z = 14

b.
phosphorus, P, Z = 15

c.
thallium, Tl, Z = 81

d.
arsenic, Z = 33

e.
nitrogen, N, Z = 7

in progress 0
Bơ 4 years 2021-09-05T11:11:40+00:00 1 Answers 16 views 0

Answers ( )

  1. dangkhoa
    0
    2021-09-05T11:13:25+00:00
    Reply

    Answer:

    A……………… I think the answer

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )