Answer : The location of proton is nucleus and the total charge of the protons in a Ni-64 atom is +28 charge.
Explanation :
As we know that an atom is the smallest unit of a matter that consist of three subatomic particles which are electrons, protons and neutrons.
The protons and the neutrons are located inside the nucleus or center of the nucleus where the mass of the an atom is concentrated and the electrons are located around the nucleus.
The protons are positively charged, the electrons are negatively charged and the neutrons are neutral that means it has no charge.
The isotopic representation of an atom is: ![_Z^A\textrm{X}](https://tex.z-dn.net/?f=_Z%5EA%5Ctextrm%7BX%7D)
where,
Z = Atomic number of the atom
A = Mass number of the atom
X = Symbol of the atom
As we are given
atom.
Atomic number of Ni atom = 28
Mass number of Ni atom = 64
As we know that the atomic number is equal to the number of protons and 1 proton has (+1) charge.
The number of protons in a Ni atom is 28 and charge of the protons in a Ni atom is (+28).
Hence, the location of proton is nucleus and the total charge of the protons in a Ni-64 atom is +28 charge.