Question

An element belongs to group II A. What is its valency? Name an
element in Group IIA. What is the formula of the sulphate of that
element?

Answer 1

Answer:

Group IIA is just the second group in the periodic table which is filled with Alkaline Earth metals like Be, Ca, Mg, Sr & Ba. They're valency is 2, as they have to leave 2 electrons to attain noble gas configuration.

As sulphate ion has charge of 2, the formula of a group IIA element sulphate will be MSO4, where M is the element.

Answer 2

Answer:

Its valency will be 2. Some elements of group II A are Magnesium and Calcium. The formula of the sulphate of group II A element will be- XSO4, where X is the element that belongs to group II A.

Hope it Helps!