The atomic number of the element with highest ionization energy among the following is

Question

The atomic number of the element with highest ionization energy among the following is (A) Z = 16 (B) Z = 14 (C) Z = 13 (D) Z = 15

Tardigrade Admin · Accepted Answer

For element with Z = 15, electronic configuration is 1s2 2s2 2p6 3s2 3p1x 3p1y 3p1z Due to exactly half filled configuration of 3p orbital, the element will have the highest ionization energy.

Q. The atomic number of the element with highest ionization energy among the following is

Z = 16

Z = 14

Z = 13

Z = 15

For element with Z = 15, electronic configuration is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p_{x}^{1} 3 p_{y}^{1} 3 p_{z}^{1}$ Due to exactly half filled configuration of $3 p$ orbital, the element will have the highest ionization energy.

Q. The atomic number of the element with highest ionization energy among the following is

Z = 16

Z = 14

Z = 13

Z = 15

For element with Z = 15, electronic configuration is 1s22s22p63s23px1​3py1​3pz1​ Due to exactly half filled configuration of 3p orbital, the element will have the highest ionization energy.

For element with Z = 15, electronic configuration is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p_{x}^{1} 3 p_{y}^{1} 3 p_{z}^{1}$ Due to exactly half filled configuration of $3 p$ orbital, the element will have the highest ionization energy.