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The energy required to ionize a potassium ion is 419 kJ·mol–1. What is the longest wavelength of ligAtomic Structure Chemistry Question

Question

The energy required to ionize a potassium ion is 419 kJ·mol–1. What is the longest wavelength of light that can cause this ionization?

A.

285 nm

✓ Correct
B.

216 nm

C.

200 nm

D.

107 nm

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