The sum of the total number of protons and neutrons present in the nucleus of an atom is known as-
Mass number
The correct answer is mass number.
The total number of protons and neutrons present in the nucleus of an atom is known as the mass number. It is represented by the letter A.
Additional Information:
Avogadro's number refers to the total number of units in one mole of any substance. It is equal to $6.022 \times 10^{23}$. This is a constant value.
The atomic number is the number of protons present in the nucleus of an atom. It is represented by the letter Z.
Important Questions from Structure of Atom
Identify the element having zero valency
What is the atomic number of nitrogen?
What are isobars?
Which of the following metals is the most reactive element?
Which of the following metals is the most ductile metal?
