The minimum energy needed to eject an electron from an atom is called its ionization energy...

Question

Question

The minimum energy needed to eject an electron from an atom is called its ionization energy I. In atomic physics, I is usuall

science chemistry

Answer 1

Answer #1

Eo for hydrogen = 13.6 eV

Given:

KE = 5.0 eV

Photon should have enough energy to provide ionisation energy and Kinetic energy.

Use:

E = Eo + KE

= 13.6 eV + 5.0 eV

= 18.6 eV

Answer: 18.6 eV

Answer 2

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