The ionisation energy of lithium is 5.40 eV

CHEMISTRY · Single correct · CBSE · Chemistry · Classification of Elements and Periodicity in Properties · Classification of Elements and Periodicity in Properties

Problem

The ionisation energy of lithium is 5.40 eV. If ionisation energy of H-atom is 13.6 eV, the effective charge acting upon outermost shell of Li is : (1) 1.26 (2) 2.52 (3) 0.63 (4) 3.0

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