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Why is second ionisation energy of lithium greater than that of boron

Why is second ionisation energy of lithium greater than that of boron

Grade:12

1 Answers

Umakant biswal
5359 Points
5 years ago
@ rishi 
This can be explained by the following points 
the outermost or the highest energy electron on a lithium atom is in the 2s orbital . beacuse the electron in a 2s orbital is already at a higher energy than the electron in 1s orbital . it takes less energy to remove this electron from the atom .. 
THATS THE REASON , OF HIGHER SECOND IONISATION ENTHALY OF LITHIUM THAN  BORON . 
HOPE IT CLEARS YOUR DOUBT 
ALL THE BEST ..

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