An element has the neutral ground state electronic configuration . To which group of the modern periodic table does it belong?

Question

An element has the neutral ground state electronic configuration $1s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2 4p^6 4d^{10} 5s^2 5p^3$. To which group of the modern periodic table does it belong?

Prashant Kotian · Accepted Answer

Correct answer: C. The outermost shell is the 5th shell (), and the differentiating electron enters the p-subshell. Therefore, it is a p-block element. For p-block elements, the Group Number = . Alternatively, . It belongs to the Nitrogen family.

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