Question :
Which of the following is not a part of an
atom.
- A. ion
- B. electron
- C. proton
- D. neutron
Answer :
Explanation :
Electron, proton and neutron are present in an atom. These are the particles which makes an atom.
However, ions aren't part of atom. Actually, in atom, number of protons and electrons are same but atoms which have different numbers of protons and electrons are called ions, and these different number of protons and electrons results in formation of positively or negatively charged particles called ions.
So basically, ions are charged particles which are either positively charged or negatively charged.