An element belongs to Group 15 and third period of the periodic table. Its electonic configuration will be

Question

An element belongs to Group 15 and third period of the periodic table. Its electonic configuration will be (A) 1s22s22p3 (B) 1s22s22p4 (C) 1s22s22p63s23p3 (D) 1s22s22p63s23p2

Tardigrade Admin · Accepted Answer

General valence shell electronic configuration of group 15 elements is n s2 n p3 and for third period n=3. Thus, with electronic configuration 1 s2 2 s2 2 p6 3 s2 3 p3, the element is phosphorus.

Q. An element belongs to Group $15$ and third period of the periodic table. Its electonic configuration will be

$1 s^{2} 2 s^{2} 2 p^{3}$

$1 s^{2} 2 s^{2} 2 p^{4}$

$1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}$

$1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{2}$

General valence shell electronic configuration of group $15$ elements is $n s^{2} n p^{3}$ and for third period $n = 3$ . Thus, with electronic configuration $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}$ , the element is phosphorus.

Q. An element belongs to Group 15 and third period of the periodic table. Its electonic configuration will be

1s22s22p3

1s22s22p4

1s22s22p63s23p3

1s22s22p63s23p2