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01/10/2020 2:04 pm
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Which of the following is the atomic number of metal?
(a) 32
(b) 34
(c) 36
(d) 38
1 Answer
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01/10/2020 2:18 pm
(d) 38
Explanation:
Elements having 1, 2 or 3 electrons in its last shell act as metals.
32 = [Ar] 3d10 4s2 p2
34 = [Ar] 3 d10 4s2p4
36 = [Ar] 3d10 4s2p6
38 = [Ar] 3d10, 4s2p65s2