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The first ionization energy of magnesium is 738 kJ/mol. A good estimate for the second ionization energy of magnesium is:

Sagot :

The second ionization energy is always greater than the first one. So, the answer is between 1450and 6900 kJ/mol.

Each ionization energy means the energy that it takes to separate the outer electron from the atom. In this case, the best estimation of the second ionization energy is 6900 kJ/mol because it would take more than double the first ionization energy.

Therefore, the answer is d.

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