Which of the following elements will have highest second ionisation enthalpy?

Question

Which of the following elements will have highest second ionisation enthalpy? (A) 1s2 2s2 2p6 3s2 (B) 1s2 2s2 2p6 3s1 (C) 1s2 2s2 2p6 3s2 3p2 (D) 1s2 2s2 2p6 3s2 3p3

Tardigrade Admin · Accepted Answer

After losing one electron, the atom will get a stable configuration and its second ionisation energy will be very high. Hence, option (b) is correct.

Q. Which of the following elements will have highest second ionisation enthalpy?

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

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

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

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

After losing one electron, the atom will get a stable configuration and its second ionisation energy will be very high. Hence, option (b) is correct.

Q. Which of the following elements will have highest second ionisation enthalpy?

1s22s22p63s2

1s22s22p63s1

1s22s22p63s23p2

1s22s22p63s23p3

After losing one electron, the atom will get a stable configuration and its second ionisation energy will be very high. Hence, option (b) is correct.

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

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

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

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