Neutral atom is a state when the atom doesn't possess any negative or positive charge on it.
Atom is made up of electrons, protons and neutrons.
Electrons are negatively charged, protons are positively charged and neutrons are neutral.
For any component: Proton count equals atomic number
Number of protons plus number of electrons equals the atomic number.
The number of neutrons is equal to the atomic number-mass number.
To balance the atom and make it neutral it is necessary that the electrons and protons are equal to neutrons.
For example, if we take Helium, it has 2 electrons, 2 protons and 2 neutrons, thus it is said to be a neutral atom.
Therefore, the necessary components for a neutral atom are electrons, protons and neutrons.
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