Which of the following correctly describes a property of an atom?
it has more protons than neutrons
it has a negative or positive charge
it has an equal number of protons and electrons
it has an equal number of neutrons and electrons

it has an equal number of neutrons and electrons

Explanation:

Number of protons always equal number of electron, but that's the case with a neutral atom. A neutral atom is an atom of any element that has no electric charge over it. This implies that it has same number of protons and electrons in it.