Question

What is the chemical formula for the compound formed between manganese(IV) and selenium?

Answer 1

Because the manganese has a charge of 4+, and selenium has a charge of 2-, you need two atoms of selenium in the formula for their charges to cancel.

The chemical formula for manganese(IV) selenide is thus: MnSe₂

Answer 2

Answer:
`MnSe_2`

Step-by-step explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here manganese is having an oxidation state of +4 called as
`Mn^(4+)` cation and selenium will form an anion
`Se^(2-)` with oxidation state of -2. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral
`MnSe_2`.

The cations and anions being oppositely charged attract each other through strong coloumbic forces and form an ionic bond.