An atom of chromium has 24 protons, 28 neutrons, and 24 electrons. A chromium atom has three subatomic particles in the nucleus.
There are three subatomic particles: protons, neutrons and electrons.
To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number:
The number of protons = atomic number.
The number of electrons = atomic number.
The number of neutrons = mass number - the atomic number.
Two of the subatomic particles have electrical charges: protons have a positive charge while electrons have a negative charge.
Thus, an atom of chromium has 24 protons, 28 neutrons, and 24 electrons. A chromium atom has three subatomic particles in the nucleus.
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