NEET 2017 Chemistry question

The element has been discovered recently. It will belong to which of the following family group and electronic configuration?

(1)Halogen family,
(2)Carbon family, Correct
(3)Oxygen family,
(4)Nitrogen family,

Answer: (2)

Solution

Radon has . After Rn the 7s (2 electrons, Z = 87-88), 5f (14, Z = 89-102), 6d (10, Z = 103-112) are filled, and then 7p. Element 112 completes 6d, so Z = 113 has and Z = 114 has . The configuration is

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Question ID VK-092086