The hypothetical ion aso three- is a polyatomic ion with arsenic atom as a central atom how many valence electrons does a compound have

3 valency electrons.

Explanation:

Arsenic has 5 valency electrons and oxygen has 6.

In the  AsO  radical,  the oxygen  can accepts 2 electrons so the number of valency electrons = 5 - 2 = 3.

convalent bond :

is a chemical bond formed by the sharing of electron between 2 atoms.

it is the direct chemical bond between 2 atoms.

in bond formation atoms are involved here.

electrovalent bond:

is a chemical bond defined as electroststic attraction between 2 atoms.

it is the electrostatic attraction between 2 atoms.

in bond formation, ions are involved here.

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