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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
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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

User Cramopy
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Answer:

A.................. I think the answer

User Farzana Khan
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