Question

What is the number of atoms for each element? $ NaCl $

Answer 1

Hint : A compound is a substance made up of two or more chemical elements that have been chemically bonded together. Covalent bonds and ionic bonds are two common forms of bonds that hold the elements in a compound together. Compound molecules contain atoms from two or more different elements.

Complete Step By Step Answer:
 $ NaCl $ is a salt called Sodium Chloride. $ NaCl $ is also known as common salt. Sodium Chloride is formed when sodium atoms bind with chlorine atoms. As a result, sodium will donate an electron to chlorine which forms the Sodium Chloride molecule.
To find the number of atoms for each element in a compound, one should look at the molecular formula description of a molecule of that particular compound. This molecular formula description should state the number of atoms present in each element explicitly.
For example, the chemical formula for a molecule of water is $ {H_2}O $ which stands for two hydrogen atoms and one oxygen atom. Similarly, the chemical formula for potassium chloride is $ KCl $ , which contains one potassium atom and one chlorine atom.
 In the same way, each molecule of $ NaCl $ contains one atom of $ Na $ which is sodium and one atom of $ Cl $ which is chlorine.
Thus, $ NaCl $ is made up of two atoms.

Note :
The chemical names for some compounds are simple enough that the molecular formula can be deduced with only a basic understanding of the naming conventions. The number of atoms of each constituent in a molecule of the compound can be determined using the molecular formula.