The Nucleus Quiz

What are found in the nucleus of an atom?

• protons and electrons

• electrons and neutrons

• protons, neutrons, and electrons

• protons and neutrons

Protons do not repel each other in the nucleus because of the ______.

• weak force

• electric force

• strong force

• gravitational force

In a radioactive nucleus, the electric force _____ the strong force.

• balances

• overpowers

• is overpowered by

• adds to

All isotopes with atomic numbers over 84 are ______.

• Nonmetals

• Radioactive

• Metalloids

• always stable

Elements larger than atomic number 93 ______.

• are completely stable

• must be made in a laboratory

• occur naturally

• are nonmetals

Isotopes have _____.

• the same number of protons, but a different number of neutrons

• the same number of neutrons, but a different number of protons

• the same number of protons, but a different number of electrons

• the same number of electrons, but a different number of protons

Alpha particles contain _________.

• two protons and two electrons

• to elections and two protons

• two protons and two neutrons

• two electrons and two neutrons

Radioactivity can be harmful and cause disease because it affects _________.

• Air

• Water

• Cells

• Blood

The process in which an atom loses particles and becomes another element is known as ________.

• Transmutation

• Fission

• Fusion

• Chain Reaction

When a neutron turns into a proton in a nucleus, what sort of particle is emitted?

• Alpha

• Beta

• Gamma

• Proton