a metal X forms an oxide having the formula XO. it belongs to third period . write the atomic number,valency.electronic configuration and name the group to which the elements belongs
Answers
A metal X from third period which forms an oxide with formula XO is Magnesium.
Atomic number = 12
Valency = +2
Electronic configuration = [Ne] 3s2
Magnesium belongs to alkali earth metal group.
It is the ninth most abundant element in the universe. It is the fourth most commonly available element in the earth after Iron, oxygen and silicon.
Magnesium can be produced artificially. Magnesium is present in many human enzymes as co-factors.
Magnesium oxide or magnesia is a white color hygroscopic solid, produced through calcination of magnesium carbonate or hydroxide. It is physically and chemically very stable at high temperature. It is also used as component of Portland cement. It is poorly soluble in water and used as antacid. It is also used as anti-caking and food additive agent.