Question

compound formed between magnesium and astatine.

Answer 1

hydrogen is the answer

hope this help you

have a nice day

Answer 2

Magnesium and Astatine will form an ionic compound. (MgAs₂)

What is an ionic compound?

• An ionic compound is a compound that consists of lattices of positively and negatively charged ions held together by ionic bonds.
• Ionic bonds arise out of the electrostatic attraction between the oppositely charged ions.

Magnesium and Astatine

• Magnesium is an electropositive element as it can easily lose electrons.
• Astatine is an electronegative element as it can gain an electron.

Electronic configuration of Mg = [Ne] 3s²

Electronic configuration of As = [Xe] 4f¹⁴5d¹⁰6s²6p⁵

• Thus the bond is formed as:

                              Mg    →   Mg⁺² + 2e⁻

                          As + e⁻ →  As⁻

                   ⇒ Mg⁺² + As⁻ → MgAs₂

Thus the compound formed is MgAs₂. It is an ionic compound.