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Question: Which atom (X) is indicated by the following configuration? \[X \rightarrow \lbrack Ne\rbrack 3s^{2...

Which atom (X) is indicated by the following configuration?

X→[Ne]3s23p3X \rightarrow \lbrack Ne\rbrack 3s^{2}3p^{3}

A

Nitrogen

B

Chlorine

C

Phosphorus

D

Sulphur

Answer

Phosphorus

Explanation

Solution

: Phosphorus has atomic number 15.

Electronic configuration: 1s22s22p63s23p3or[Ne]3s23p31s^{2}2s^{2}2p^{6}3s^{2}3p^{3}or\lbrack Ne\rbrack 3s^{2}3p^{3}