Answer:
The true statement is
An element is made of only one kind of atom.
Explanation:
An element is made of only one kind of atom. For example if we take element carbon it is made of carbon atoms only .
The other atatements are false.
Positively charged atoms lose electrons and don't gain electrons.
A molecule can also be made of two or more atoms of the same element. Eg H₂, P₄, Cl₂ etc.
Protons and neutrons are found in the nucleus of the atom and electrons are present outside the nucleus.
