Question

The magnitude of screening constant
is determined by:​

Answer 1

Answer:

When we consider the attraction of the nucleus over an electron , there are always some electrons in between these two. These electrons partially neutralise the effect of attraction and thus the effective nuclear charge for an electron is much less than the actual nuclear charge . This screening of inner electron produces the screening factor . It is represented by ‘σ’ . It is related to effective nuclear charge by the following relation-

Effective nuclear charge = Actual nuclear charge – σ

Zeff = Z – σ

Answer 2

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