The dominating factor responsible for the decreasing ionisation energies of the elements on moving down the group is `:`A. atomic radiusB. type of electron to be removedC. the valence shell electron configurationD. all of these

The dominating factor responsible for the decreasing ionisation energi

1.	The dominating factor responsible for the decreasing ionisation energies of the elements on moving down the group is `:`A. atomic radiusB. type of electron to be removedC. the valence shell electron configurationD. all of these
Answer» Correct Answer - 1 As size of atom increases the distance between the nucleus and valence shell electron increases. As a result of this the attraction between nucleus and valence shell electron decreases. Hence less energy is required for the removal of the valence shell electron. So down the group ionisation energies decreases.

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The dominating factor responsible for the decreasing ionisation energies of the elements on moving down the group is `:`A. atomic radiusB. type of electron to be removedC. the valence shell electron configurationD. all of these

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