Question

First ionisation potential of carbon-atom is greater than that of Boron, whereas the
reverse is true for second ionisation potential – Give appropriate reason.

Answer 1

Answer:

Explanation:

The first ionisation enthalpy of carbon is more than that of boron because the effective nuclear charge of carbon is more and its atomic size is smaller as compared to boron. ... As a result more energy is required to remove an electron from B+ than from C+.