Question

Mass number of an element is represented by letter

• A. ‘A’
• B. ‘L’
• C. ‘Z’
• D. ‘M’

Answer 1

The correct option is A

‘A’

The explanation for the correct option

Option A

• The mass number of an element is defined as the total number of protons and neutrons present in the atomic nucleus.
• The mass number is also called the atomic mass number.
• The mass number of an element is represented by the letter ‘A’.
• Example: ${}^A\mathrm{M}_{\mathrm{Z}}\mathrm{So},{}^{23}\mathrm{Na}_{11}$ 11 represents the atomic number and 23 represents mass number

Conclusion: Thus, option A is correct.