Question

what is effective nuclear charge ?

Answer 1

the decrease in the attractive force results in the decrease of the magnitude of the nuclear charge (z) .The decreased nuclear charge is called as the effective nuclear charge (Zeff)
effective nuclear charge is defined as the difference between the actual nuclear charge and sheiding effect caused by the inner shell electrons


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Answer 2

Answer:

Effective nuclear charge : Due to screening effect the valency electrons experience less attraction towards nucleus. This reduces the active nuclear charge (z) actually present on the nucleus. This reduced nuclear charge is termed as 'effective nuclear charge. (Z_eff).