Nelement has an atomic mass of 16 and an atomic number of 7 ow many protons and neutrons does it have

Number of protons: 7

Number of neutrons: 9

The atomic number is the number of protons (p+). In a neutral atom, the number of electrons (e-) equals the number of protons. Mass number is the sum of the protons and neutrons (n0) of a particular isotope. If you have mass number and atomic number, subtract the atomic number from the mass number to get the number of neutrons. Number of neutrons=  (Mass number)-(atomic number)

So, the given isotope of nitrogen(N) has 7 protons, 7 electrons and 9 neutrons.