Atomic Structure Quiz

What are the three fundamental particles that make up an atom?

• Electron, Neutron, and Positron

• Proton, Electron, and Positron

• Proton, Electron, and Neutron

• Proton, Neutron, and Photon

What is the central part of an atom called?

• Nucleus

• Core

• Center

• Shell

Why do electrons revolve around the nucleus?

• Due to nuclear force

• Due to gravitational force

• Due to electrostatic force

• Due to magnetic force

What charge does a neutron carry?

• Positive

• Negative

• Neutral

• Variable

In a hydrogen atom, how many protons and electrons are there?

• One proton and two electrons

• Two protons and one electron

• Two protons and two electrons

• One proton and one electron

What role do neutrons play in the nucleus?

• They increase the energy of the nucleus

• They minimize repulsion among protons

• They attract protons

• They repel electrons

How do neutrons help in the stability of the nucleus?

• By increasing the charge of the nucleus

• By acting as insulation between protons

• By decreasing the mass of the nucleus

• By attracting electrons

How many electrons can the first shell of an atom hold?

• One

• Two

• Four

• Eight

What happens to the third electron in a lithium atom?

• It moves to the second shell

• It stays in the first shell

• It leaves the atom

• It combines with a proton

What is the maximum number of electrons the second shell can accommodate?

• Eight

• Six

• Four

• Two