Ionisation energy of He is 19.6x 10-18 J atom-1. The energyof the firs – InterviewSolution

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1.	Ionisation energy of He is 19.6x 10-18 J atom-1. The energyof the first stationary state (n 1) ofLi2t is (2010)(a) 441 x 10-16Jatom" (b)-4.41 × 10-17 J atom"(c)-2.2 x 10-15 J atom-1 (d) 8.82 × 10-17 J atom"
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