Alpha Beta and Gamma Decay

Which of the following best describes a half-life?

• the mass of a radioactive isotope left after half of a second

• a process dependent on temperature and pressure

• the time it takes for half the mass of a radioactive sample to decay

• a type of chemical reaction

Tags

NGSS.HS-PS1-8

An alpha particle has the same composition as a

• 1. hydrogen nucleus

• 1. deuterium nucleus

• 1. beryllium nucleus

• helium nucleus

Which of the following particles/rays is needed to balance this nuclear equation?

• alpha particle

• beta particle

• gamma ray

• neutrino

Tags

NGSS.HS-PS1-8

Which of the following isotopes is needed to balance this nuclear equation?

• P-27

• Si-28

• S-27

• Al-27

Tags

NGSS.HS-PS1-8

Which of the following isotopes is needed to balance this nuclear equation?

• At-214

• Au-206

• Bi-214

• Tl-206

Tags

NGSS.HS-PS1-8

Which nuclear decay emission consists of energy only?

• alpha decay

• 1. beta decay

• 1. gamma ray (radiation)

• 1. positron emission

Tags

NGSS.HS-PS1-8

NGSS.HS-PS4-3

In a nuclear reaction, the parent isotope is

• an alpha or beta particle

• the stable decay product

• the same as the daughter isotope

• the radioactive (or unstable) isotope.

Tags

NGSS.HS-PS1-8

Which of the following isotopes is needed to balance this nuclear equation?

• P-33

• S-32

• P-32

• Si-32

Tags

NGSS.HS-PS1-8

Which type(s) of radiation is the most ionising?

• alpha

• beta

• gamma

• alpha and beta

• beta and gamma

Tags

NGSS.HS-PS1-8

When Uranium decays it emits an alpha particle, forming an isotope of Thorium. Which of the above decay equations is correct?

• A

• B

• C

• D

Tags

NGSS.HS-PS1-8