How do you find the number of neutrons?
This means to find the number of neutrons you subtract the number of protons from the mass number.
On the periodic table, the atomic number is the number of protons, and the atomic mass is the mass number.
Are protons and electrons the same?
Protons and neutrons are in the center (nucleus) of the atom. Proton—positive; electron—negative; neutron—no charge. The charge on the proton and electron are exactly the same size but opposite. The same number of protons and electrons exactly cancel one another in a neutral atom.
Where are protons located?
Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. They group together in the center of the atom.
How do you figure out the atomic number?
To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number:
- number of protons = atomic number.
- number of electrons = atomic number.
- number of neutrons = mass number – atomic number.