The ionization energy of hydrogen atom in the ground state is A. 13 .

1.	The ionization energy of hydrogen atom in the ground state is A. 13 .6 MeV B. 13 .6 eV C. 13 .6 Joule D. Zero
Answer» Correct option (b) 13.6 eV Explanation: The ionization energy of hydrogen in its ground state is 13.6 eV For a hydrogen atom, composed of an orbiting electron bound to a nucleus of one proton, an ionization energy of 2.18 × 10⁻¹⁸ joule (13.6 electron volts) is required to force the electron from its lowest energy level entirely out of the atom.

The ionization energy of hydrogen atom in the ground state is A. 13 .6 MeV B. 13 .6 eV C. 13 .6 Joule D. Zero

Answer»

Correct option (b) 13.6 eV

Explanation:

The ionization energy of hydrogen in its ground state is 13.6 eV

For a hydrogen atom, composed of an orbiting electron bound to a nucleus of one proton, an ionization energy of 2.18 × 10⁻¹⁸ joule (13.6 electron volts) is required to force the electron from its lowest energy level entirely out of the atom.

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The ionization energy of hydrogen atom in the ground state is A. 13 .6 MeV B. 13 .6 eV C. 13 .6 Joule D. Zero

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