Atoms MCQs

Atoms MCQs here to test your knowledge.

An atom is the basic unit of matter, consisting of a nucleus composed of protons and neutrons, surrounded by a cloud of electrons. It is the smallest unit of an element that retains the chemical properties of that element.

Our Atoms MCQs offer a quick and effective way to test your knowledge of atomic structure and properties. Whether you’re studying chemistry, physics, or related fields, these multiple-choice questions will help reinforce key concepts and deepen your understanding of atoms and their interactions.

MCQ on Atom

MCQ# 1: Nucleus contains?

Protons
Neutrons
Both of these
electrons

Correct Answer

Both of these

MCQ# 2: A _____ is the smallest whole, stable piece of an element that still has all the properties of that element

Electron
compound
atom
mixture

Correct Answer

atom

MCQ# 3: _____ is the smallest “piece” of matter that can be measured

Electron
compound
mixture
atom

Correct Answer

atom

MCQ# 4: subatomic particles include _____

Protons
Neutrons
electrons
All of these

Correct Answer

All of these

MCQ# 5: Protons carry _____ ?

positive charge
Negative charge
No charge
None of these

Correct Answer

 positive charge

MCQ# 6: electrons carry _____ ?

positive charge
Negative charge
No charge
None of these

Correct Answer

Negative charge

MCQ# 7: neutrons carry _____ ?

positive charge
Negative charge
No charge
None of these

Correct Answer

No charge

MCQ# 8: _____ ions have more protons than electrons

Positive
Negative
Neutral
None of these

Correct Answer

Positive

MCQ# 9: _____ ions have less protons than electrons

Positive
Negative
Neutral
None of these

Correct Answer

Negative