Question

slater rule of3p electron of aluminium

Answer 1

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»»»In quantum chemistry, Slater's rules provide numerical values for the effective nuclear charge in a many-electron atom. Each electron is said to experience less than the actual nuclear charge, because of shielding or screening by the other electrons.

»»»screening constant (plural screening constants) (chemistry, physics) A measure of the screening / shielding of an electron from the charge of the nucleus by other, inner electrons