Practice question
Question
The ratio of the kinetic energy of an electron in the first orbit of H to the second orbit of He⁺ is: (v₁ for H = 2.19 × 10⁶ m s⁻¹, mₑ = 9.1 × 10⁻³¹ kg)
Explanation
Both have same v, so KE ratio = 1.
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