Question

What is the name of the ionic compound $N{i_3}{\left( {P{O_4}} \right)_2}$ ?

Answer 1

Ionic compounds are compounds that can be dissociated into ions easily. Nickel and phosphate groups combine with each other and form a compound with the molecular formula of $N{i_3}{\left( {P{O_4}} \right)_2}$ . based on the molecular formula, the name of the compound can be written.

Complete Step By Step Answer:
The modern periodic table is the representation of elements arranged according to the order of atomic numbers in vertical columns and horizontal rows. The vertical columns were known as groups and the horizontal rows were known as periods. There are $7$ periods and $18$ groups in the periodic table.
Nickel is an element with atomic number $28$ and belongs to transition elements. It can also exist as a transition metal which can act as a metal by losing electrons.
Nickel can lose electrons and exist as a positive ion namely cation in the formation of chemical compounds.
Phosphorus and oxygen can combine with each other and form different groups or molecules. One of them is the phosphate group with the molecular formula of $P{O_4}^{3 - }$ .
These two groups combine to form a compound with the molecular formula of $N{i_3}{\left( {P{O_4}} \right)_2}$ .
The name of this compound is nickel phosphate as it consists of nickel and phosphate groups.

Note:
Nickel phosphate is an ionic compound and can be used as catalysts or adsorbents. Nickel and phosphate combine to form different compounds like nickel (II) phosphate which is different from nickel phosphate. The molecular formula of nickel (II) phosphate is $N{i_3}{O_8}{P_2}$ .