Write the electron - dot structure of magnesium and oxygen.

The electron-dot structure, also known as the Lewis dot structure, represents the valence electrons of an atom. For magnesium and oxygen, we can illustrate their electron-dot structures as follows:

Magnesium (Mg)

Magnesium is in group 2 of the periodic table and has two valence electrons. Its electron-dot structure is shown as:

• Mg: ••

Oxygen (O)

Oxygen is in group 16 and has six valence electrons. Its electron-dot structure is represented as:

• O: ••••

Combining Magnesium and Oxygen

When magnesium and oxygen react, magnesium donates its two valence electrons to oxygen, allowing both to achieve stable electron configurations. The resulting structures can be depicted as:

• Mg: •• → O: ••••

This transfer of electrons leads to the formation of magnesium oxide (MgO), where magnesium becomes a positively charged ion (Mg²⁺) and oxygen becomes a negatively charged ion (O²⁻).