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The ionization energy of boron is less t...

The ionization energy of boron is less than that of beryllium because:

A

Boron has higher nuclear charge

B

Atomic size of boron is more than that of beryllium

C

Boron has only one electron in p-sub-shell

D

Atomic size of boron is less than that of beryllium

Text Solution

Verified by Experts

The correct Answer is:
C
Boron has one `e^(-)` its outer orbital hence have tendency to donate the `e^(-)` easily.
`B = 1s^2, 2s^2 2p^1`
`Be = 1s^2 2s^2` (All orbital are filled)
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