What is the total number of neutrons in an atom of 0-18?

The number of neutrons in given isotope are 10

Explanation:

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and neutrons that are present in an atom.

Mass number = Number of protons + Number of neutrons

The isotopic representation of an atom is:

where,

Z = Atomic number of the atom

A = Mass number of the atom

X = Symbol of the atom

We are given:

An isotope having formula:  

Atomic number = Number of protons = 8

Mass number = 18

Number of neutrons = 18 - 8 = 10

Hence, the number of neutrons in given isotope are 10

the answer is b. dilution