# Question

The following numbers are the ratios of second ionization energy to first ionization energy:

Na: 9.2

P: 1.8

Mg: 2.0

S: 2.3

Al: 3.1

Cl: 1.8

Si: 2.0

Ar: 1.8

Explain these relative numbers.

Na: 9.2

P: 1.8

Mg: 2.0

S: 2.3

Al: 3.1

Cl: 1.8

Si: 2.0

Ar: 1.8

Explain these relative numbers.

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