Question

if z=11 for element a and z=12 for element B,then what would be the valency of the elements?name elements A And B

Answer 1

Name of the element A = sodium ( Na)

Valency = 1

Name of the element B = Magnesium ( Mg)

Valency = 2

Hope it will help u

Answer 2

Answer:

Atomic number (Z) = 11. Atomic number (Z) = 12, so name of element is sodium (Na) & (Mg) with such configuration number. It can be found that Na and Mg Re the given elements.

The valency of Sodium (Na) is +1 as it loses one electron to become a cation. The valency of Magnesium (Mg) is 2 as it has two electrons present in its outermost shell.

Explanation: