Physical Science - Nuclear Chem Quiz

What is radioactivity?

• The process where a stable atomic nucleus emits light.

• The process in which an unstable atomic nucleus emits charged particles and energy.

• The method by which atoms are split into smaller parts.

• The reaction between two stable isotopes.

Tags

NGSS.HS-PS1-8

What does the term 'radioisotope' refer to?

• A type of radiation used in medical imaging.

• A stable atom that does not change over time.

• Any atom containing an unstable nucleus.

• A device used to measure radiation levels.

Tags

NGSS.HS-PS1-8

What happens during nuclear decay?

• Atoms gain protons and become a new element.

• Atoms of one element change into atoms of a different element.

• Atoms lose their nuclear properties and become inert.

• Atoms split into photons and neutrons.

Tags

NGSS.HS-PS1-8

How do radioisotopes change over time?

• They gain stability and stop emitting radiation.

• They remain unchanged but move to a higher energy state.

• They spontaneously change into other isotopes.

• They dissolve into subatomic particles.

Tags

NGSS.HS-PS1-8

What is nuclear radiation composed of?

• Protons and neutrons

• Alpha particles, beta particles, and gamma rays

• Electrons and positrons

• Neutrinos and photons

Tags

NGSS.HS-PS1-8

From where is nuclear radiation emitted?

• From the electron shells of atoms

• From the nuclei of radioisotopes

• From chemical reactions

• From mechanical friction

Tags

NGSS.HS-PS1-8

What is an alpha particle composed of?

• Two protons and two electrons

• Two protons and two neutrons

• Two neutrons and two electrons

• Two protons only

What is the charge of an alpha particle?

• 1+ charge

• 2+ charge

• No charge

• 1- charge

Which of the following can stop alpha particles?

• A thick lead shield

• A sheet of paper

• A concrete wall

• None of the above

What is the symbol for an alpha particle?

• β 2He

• α 2He

• γ 1H

• α 1H