First slide

Group16 or Oxygen family

Question

The atomic number of the element next to ₁₆S in the same group is

Moderate

A

18
B

24
C

34
D

42

Solution

The electronic configuration of S is $(1 s)^{2} (2 s)^{2} (2 p)^{6} (3 s)^{2} (3 p)^{4}$ .
So the next element in this group will have configuration $(1 s)^{2} (2 s)^{2} (2 p)^{6} (3 s)^{2} (3 p)^{6} (3 d)^{10} (4 s)^{2} (4 p)^{4}$ that is, its atomic number is 34.

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