Explanation:
Total number of protons present in an atom or element is known as the atomic number. On the other hand, sum of total number of protons and neutrons present in an element is known as a
For example, an atom with atomic number 7 and atomic mass 16 means there are 7 protons.
Whereas number of neutrons are calculated as follows.
Atomic mass = no. of protons + no. of neutrons
16 = 7 + no. of neutrons
no. of neutrons = 16 -7
= 9
Thus, we can conclude that the given atom contains 7 protons and 9 neutrons.
