Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:
The ionization energy of hydrogen atom is which of the following?
Options:
1 eV
10.2 eV
13.6 eV
13.6 J
Correct Answer:
13.6 eV
Explanation:
Ionization energy is the amount of energy required to knock off the outermost electron from the atom. The energy of outermost electron of the hydrogen atom is 13.6.