NDA 2022 Chemistry question

Chemistry Structure of Atom NDA 2022

For an element with atomic number 35, which one of the following will be the correct number of electrons in its valence shell based on Bohr's model of an atom?

(A)1
(B)3
(C)5
(D)7Correct

Answer: (D)

Solution

The element with atomic number 35 is bromine. Filling the shells in order K, L, M, N gives 2, 8, 18,

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Question ID VK-032075