Question

How many total valence electrons are available in the ion ${\text{NO}}_3^{-}?$

Answer 1

Hint: ${\text{NO}}_3^{-}$ is the nitrate anion which $1$ negative darge. Valence electrons are the electrons which are present in the outermost shell. Nitrates are found naturally on earth as large deposits, particularly of nitratine, a major source of sodium nitrate. Nitrates are produced industrially from nitric acid.

Complete step by step answer:
We know that the nitrate anion contains.
One nitrogen atom there oxygen atom.
Nitrogen occupies groups $15$ in periodic table and oxygen occupies groups $16$.
The number of valence electrons in nitrogen are $5$ and in oxygen are $6.$
We have the formula as ${\text{NO}}_3^{-}$ $1$ atom of nitrogen, $3$ atoms of oxygen and $1$ negative charge making it anion.
Total number of valence electron $={(1\times 5)}_{nitrogen}+{(3\times 6)}_{oxygen}+1_{ch\arg e}$
Therefore valence electrons available $=5+18+1=24$ electrons.
${\text{NO}}_3^{-}$ anion has $24$ valence electrons available with it. Valence electron is an outer shell electron that can participate in formation of a chemical bond. The presence of valence electrons can determine the element’s chemical properties such as its valence. For a main group element, a valence electron can exist only in the outermost electron shell, for a transition metal, a valence electron can also be in an inner shell.
Nitrates are a common component of fertilizers and expenses. Almost all nitrates are soluble in water. Nitrates are found naturally on earth as large deposits, particularly of nitratine, a major source of sodium nitrate. Nitrates are produced industrially from nitric acid. As a byproduct of lightning strikes in earth’s nitrogen oxygen rich atmosphere, nitric acid is produced when nitrogen dioxide reacts with water vapor.

Additional Information:
The ion is the conjugate base of nitric acid, consisting of one central nitrogen atom surrounded by three identically bonded oxygen atoms in an original planar arrangement. Nitrates are produced by a number of species of nitrifying bacteria and the nitrate compounds for gun power where historically produced in the absence of mineral nitrate sources, are means of various fermentation processes using urine and drug. Valence electrons are also responsible for the electrical conductivity of an element as a result an element may be classified as a metal, a nonmetal, or a semiconductor. The number or electron is an atom producer in bounding behavior. A metal loses its electron from the valence shell and hence forms a cation. Non-metal accepts the electrons and hence forms anion. The most reactive kind of non-metal is a halogen. An atom can either share an electron with a neighboring atom or remove an electron from another atom.

Note: A rich source of inorganic nitrate is the human diets come from leafy green foods such as spinach and arugula, ${\text{NO}}_3^{-}$ in the usable active component within beetroot juice and other vegetables. Nitrates are mainly produced for use as fertilizers in agriculture because of their high solubility and biodegradability. With each group of metals, reactivity increases with each lower row of table because a heavier element has more electrons shells than a lighter element. Valence of an atom equals the number of electrons gained, lost or shared in order to form the still octet. Nitrates an ox anion, a monovalent inorganic anion. It is a conjugate base of nitric acid.