QAPhysics › Which of the following atoms would have the largest second ionization energy?
Q

Which of the following atoms would have the largest second ionization energy?

1) Sr

2) Sc

3) Ca

4) K

5) AI

A

Answer: 5. Aluminum.

Explanation: The ionization energy of an atom is the amount of energy required to remove an electron from a mole of atoms while in the gas phase.

The second ionization energy is the energy required to remove a second electron, to form 2+ cations form 1+ cations.

1 year ago
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