1. Tardigrade
  2. Question
  3. Chemistry
  4. The correct order of decreasing second ionisation enthalpy of Ti(22), V(23), Cr(24) and Mn(25) is

Q. The correct order of decreasing second ionisation enthalpy of Ti(22), V(23), Cr(24) and Mn(25) is

 4274  215 AIPMTAIPMT 2008The d-and f-Block Elements Report Error

Solution:

The amount of energy required to remove an
electron from unipositive ion is referred as second
ionisation potential.
In Ti, V, Cr and Mn, generally second ionisation
energy increases with increase in atomic number
but second ionisation potential of Cr is greater than
that of Mn due to the presence of exactly half-filled
d-subshell in Cr.
Thus, the order of second ionisation enthalpy is
Cr > Mn > V > Ti