Answer: It is equal to the sum of number of neutrons and protons.
Explanation:
Atomic mass of an element is defined as the sum of number of neutrons and number of protons that are present in an atom. It is represented as 'A'.
A = Atomic mass = Number of neutrons + Number of protons
For an element X having 5 protons and 6 neutrons, the atomic mass will be:
Atomic mass = 5 + 6
Hence, this is equal to the sum of number of neutrons and protons.
