Question

1 (1) Why is the second conisation entraty
of ca is more than ith frist
innisation enthalfy ?​

Answer 1

Explanation:

second ionization enthalpy of Ca is not less than first

assuming you are talking about Na. In this case second ionization enthalpy is more than First.

See every element want to get noble gas configuration so is sodium

it's configuration 1s2 2s2 2p6 3s1

by loss of 1e from 3s1 orbital it attain noble gas configuration therefore energy required to remove this electron from stable configuration is very high

Hope I clear your doubt