Question

Write the formula and valency of aluminate.

Answer 1

Aluminate:

• Aluminate ion is made of aluminium and oxygen.
• The formula for aluminate is ${\mathrm{AlO}}_3$.
• The aluminate is an anionic compound.
• It is an oxyanion of aluminium.
• Aluminium is a silvery-white soft metal belonging to the group $13$ i.e. boron family.
• Oxygen is an electronegative atom which belongs to the group $16$.

Valency:

• The valency of aluminate is $-1$.
• The aluminium will have the valency of $+3$ and oxygen will have$-2$.
• Valency is nothing but the combining capacity of elements to form compounds.
• It will determine how many atoms can combine with other atoms.