The energy of an atom in ground state is

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Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:

The energy of an atom in ground state is -3.4 eV. The ionization energy of this atom can be expressed as which of the following?

Options:

1.7 eV

3.4 eV

5.1 eV

6.8 eV

Correct Answer:

3.4 eV

Explanation:

Ionization energy is the amount of energy required to knock off the outermost electron from the atom.