Mass and atomic number — task. Chemistry CBSE Live product, Class 9 (2026-27).

Identify the correct answer given below:

Which of the following is correct for the element represented as \(_{Z}^{A}\textrm{X}\)

\(X\) is the number of protons, \(A\) is the number of electrons, \(Z\) is the mass number
\(X\) is the mass number, \(A\) is the atomic number, \(Z\) is the symbol of the element
\(X\) is the atomic number, \(A\) is the number of neutrons, \(Z\) is the symbol of the element
\(X\) is the symbol of the element, \(A\) is the mass number, \(Z\) is the atomic number

Did you find an error?

3. Mass and atomic number