Module G Review Questions

As a sample of a radioactive element decays, its half-life

• decreases

• increases

• stays the same

• doubles

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NGSS.HS-PS1-8

As a the temperature of a radioactive element increases, its half-life will

• decreases

• increases

• stays the same

• doubles

A radioactive element has a half-life of 2 days. What fraction of the parent isotope is left after 6 days?

• 1/2

• 1/4

• 1/8

• 1/3

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NGSS.HS-PS1-8

Which of the following is NOT a characteristic of an beta particle?

• • the ejected particles are similar to an electron

• a neutron breaks apart into a proton and an electron

• When emitted, it decreases the atomic number of the daughter isotope by 2

• When emitted, it does not change the mass number of the daughter isotope

1. Which of the following best describes a half-life?

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

• 1. a process dependent on temperature and pressure

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

• a type of chemical reaction

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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

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NGSS.HS-PS1-8

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

• alpha particle

• beta particle

• gamma ray

• neutrino

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NGSS.HS-PS1-8

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

• P-27

• Si-28

• S-27

• Al-27

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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