Question

In a chemical formula, the number of atoms for each element is usually indicated by a

Answer 1

Subscript

Step-by-step explanation:

For example
`Ca_1 Cl_2` shows 1 atom of Ca and 2 atoms of Cl

Another example

`3Ca_3 (P_1 O_4 )_2`

we multiply

Coefficient × subscript × number outside the bracket.......... to find the number of atoms

(Please note: 3 is the coefficient, and if there is no number given then 1 will be the coefficient )

So,

`3 * 3 = 9` , Ca atoms

`3 * 1 * 2 = 6` , P atoms

`3 * 4 * 2 =24`, O atoms are present.