Question

20) What is the minimum energy required to ionize a hydrogen atom in the n = 2 state?

Answer 1

The minimum energy required to ionize a hydrogen atom in the n = 2 state is -1.51 eV. Option B is corect.

What is hydrogen?

The chemical element hydrogen has the atomic number 1 and the symbol H. The smallest element is hydrogen.

The second excited state matches n=3. The minimum energy required to ionize a hydrogen atom in the n = 2 state  is;

$\rm E= - \frac{13.6}{n^2} \\\\ \rm E= \frac{13.6}{3^2} \\\\ E= - \frac{13.6}{9} \\\\ E= -1.51 \ eV$

The minimum energy required to ionize a hydrogen atom in the n = 2 state is -1.51 eV

Hence, option B is corect.

To learn more about the hydrogen refer to:

brainly.com/question/11837837

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