1.

Radiation coming from transition n = 2 to n = 1 of hydrogen atoms fall of He⁺ions in n = 1 and n = 2 states. The possible. Transition of helium ions as they absorb energy from the radiation is: (A) n = 2 → n = 4 (B) n = 2 → n = 5 (C) n = 2 → n = 3 (D) n = 1 → n = 4

Answer»

ANSWER:

A. n = 2 to n = 4

just MULTIPLY z2/n2

Explanation:

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