In a Bohr model of an atom of phosphorus, how many neutrons would be in the nucleus?

The number of neutrons in the nucleus of an atom is not directly determined by the Bohr model. The Bohr model only provides information about the energy levels and electron arrangement in an atom's electron cloud. The number of neutrons in an atom's nucleus is determined by its atomic mass.

Phosphorus has an atomic number of 15, which means it has 15 protons in its nucleus. By looking up the atomic mass of phosphorus, which is approximately 31, we can subtract the atomic number to find the number of neutrons. In this case, 31 - 15 = 16 neutrons.

So, in a Bohr model of an atom of phosphorus, there would be approximately 16 neutrons in the nucleus.