GENERAL KNOWLEDGE

Detailed explanation-1: -All proper atoms have equal number of protons and electrons ie, all non-ions have equal number of protons and electrons. However when an atom is ionized by removing one electron, then it is positively charged and has one electron less than proton.

Detailed explanation-2: -All atoms of an element have the same number of protons, and every element has a different number of protons in its atoms. For example, all helium atoms have two protons, and no other elements have atoms with two protons.

Detailed explanation-3: -An atom has an equal number of electrons, protons, and neutrons.

Detailed explanation-4: -Atoms do not always contain the same number of electrons and protons, although this state is common. When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons).

Detailed explanation-5: -Isotopes. An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.