Question

Which of the following statements is correct regarding the ionization energy of magnesium and calcium?

A) Magnesium has a higher ionization energy than calcium.
B) Calcium has a higher ionization energy than magnesium.
C) Magnesium and calcium have similar ionization energies.
D) Ionization energy is not a property of metals.

Answer 1

Magnesium and calcium have similar ionization energies because they are in the same group and have the same number of valence electrons.

Step-by-step explanation:

Magnesium and calcium have similar ionization energies. The ionization energy is the energy required to remove an electron from an atom. In general, ionization energy tends to increase as you move across a periodic table period from left to right. However, for magnesium and calcium, both elements are in the same group (Group 2) and have the same number of valence electrons, so their ionization energies are similar.