Ionisation energy of He+ is 19.6x 10^-18 J atom^-1. The energy of the first stationary state (n = 1) of Li^2+ is
Ionisation energy of He+ is 19.6x 10-18 J atom-1. The energy of the first stationary state (n = 1) of Li2+ is
(a) 4.41 x 10-16 J atom-1 (b) -4.41 x 10-17 J atom-1
(c) -2.2 x 10-15 J atom-1 (d) 8.82 x10-17 J atom-1
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