AQA P4 Radiation

In order of most to least penetrating radiation we have

• Alpha , Beta,  Gamma
• Beta , Gamma , Alpha
• Gamma, Beta, Alpha
• Gamma, Alpha, Beta

Tags

NGSS.HS-PS1-8

Mass number of atom shown is

• 3
• 6
• 9
• 12

Has a mass of 4 and a charge of +2

• Alpha
• Beta
• Gamma

Which type of radioactive decay gives off energy only?

• alpha
• beta
• gamma

Tags

NGSS.HS-PS1-8

What is an atom?

• The smallest part of an element

• A substance made of two or more elements, chemically joined

• A substance made of two or more elements, not chemically joined

• The largest part of an element

What is an isotope?

• An atom of an element with a different number of neutrons

• An atom of an element with a different number of protons

• An atom of an element with a different number of electrons

What is radioactive decay?

• An unstable nucleus breaks down to become more stable, giving off radiation

• An unstable atom breaks down to become more stable, giving off radiation

• An unstable element breaks down to become more stable, giving off radiation

• An unstable compound breaks down to become more stable, giving off radiation

What is activity?

• The rate that nuclei decay

• The rate that ions decay

• The rate that protons decay

• The rate that electrons decay

What is the unit of activity?

• Becquerels (Bq)

• Coulombs (C)

• Hertz (Hz)

• Pascals (Pa)

Which particle is NOT located in the nucleus

• Proton

• Neutron

• Electron