Question

Write chemical names of the following compound:
${\text{N}}{{\text{a}}_{\text{2}}}{\text{Si}}{{\text{O}}_{\text{3}}}$

Answer 1

We need to know that in chemistry, periodic tables play a vital role. In the periodic table there are totally $118$ elements. In the periodic table there are totally $18$ columns and $7$ rows. The columns are called groups. Hence, $18$ groups in the periodic table. The rows are called periods. Hence, totally $7$ period in the table. In chemistry each element has a specific symbol in the periodic table. We first know the symbol of every element in the given molecule. The chemical name depends on the symbol of the element and the number of the element count in the molecule. In written chemical names of molecules having some rules and regulation. In chemical formulas, the symbol of a metal atom is written first and other are written next.

Complete answer:
We need to remember that the atomic number of sodium is $11$and the symbol is ${\text{Na}}$. The mass number of sodium is $23$.
The atomic number of silicon is $14$ and the symbol is ${\text{Si}}$. The mass number of silicon is $28$.
The atomic number of oxygen is $8$and the symbol is ${\text{O}}$. The mass number of oxygen is $16$.
The given formula is
${\text{N}}{{\text{a}}_{\text{2}}}{\text{Si}}{{\text{O}}_{\text{3}}}$
The general formula of sodium metasilicate is ${\text{(N}}{{\text{a}}_{\text{2}}}{\text{O)x(Si}}{{\text{O}}_2}{)_y}$.
${\text{N}}{{\text{a}}_{\text{2}}}{\text{Si}}{{\text{O}}_{\text{3}}}$ is sodium metasilicate. Because, x and y value of sodium metasilicate in ${\text{N}}{{\text{a}}_{\text{2}}}{\text{Si}}{{\text{O}}_{\text{3}}}$ is one.
Hence, the chemical name of ${\text{N}}{{\text{a}}_{\text{2}}}{\text{Si}}{{\text{O}}_{\text{3}}}$ is sodium metasilicate.

Note:
We have to know that the atomic number of the element is nothing but the number of electrons or number of protons. The mass number of the atom is nothing but the sum of the number of protons and the number of neutrons. The sum of the total oxidation number of the atom in the molecule is zero. If it is zero it means the molecule is in the stable state. If suppose, the sum of the oxidation number of the atom is greater than zero or positive value. That molecule is considered a cationic compound. In other cases, the sum of the oxidation number of the atom in the molecule is less than zero means that the molecule is considered an anionic compound. The anionic and cationic compounds are less stable than neutral molecules.