Question

What is the electrovalency of CaF2.

Answer 1

Electrovalency- The number of electrons lost or gained by an element to achieve nearest noble gas configuration is called electrovalency of that atom.

In CaF2, Two F atoms will gain an electron each, = -1.

While Ca will lose its 2 electrons = +2.

Answer 2

Answer:

+2 , electrovalency for calcium (Ca)

-1 , electrovalency for fluorine (F)