Ch 20 Radioactivity Review

The type of radioactive particle that can be stopped by a sheet of paper is the ____.

• alpha particle

• beta particle

• gamma ray

• uranium

Tags

NGSS.HS-PS1-8

One type of radioactive device that indicates the intensity of radiation with a clicking sound that increases in frequency as more radiation is present is a(n) ____.

• bubble chamber

• cloud chamber

• electroscope

• Geiger counter

A helium nucleus with two protons and two neutrons is called a(n) ____.

• alpha particle

• beta particle

• electroscope

• gamma ray

Negatively charged particles emitted from a nucleus at a high speed are ____.

• alpha particles

• beta particles

• gamma rays

• X rays

Tags

NGSS.HS-PS1-8

The three types of nuclear radiation in increasing order of penetrating power are ____.

• alpha, beta, gamma

• alpha, gamma, beta

• X ray, beta, gamma

• X ray, gamma, beta

Tags

NGSS.HS-PS1-8

The stability of an isotope nucleus depends on the ____.

• atomic mass

• atomic number

• number of neutrons

• neutron-to-proton ratio

Radioactive tracers are useful in ____.

• calculating the ages of fossils

• determining medical problems

• fueling nuclear reactions

• treating brain tumors

Both a fusion reaction and a fission reaction ____.

• causes chain reactions

• produce energy

• take place at room temperature

• use hydrogen as a fuel

Tags

NGSS.HS-PS1-8

Neutrons released in a fission reaction can strike other nuclei and cause ____.

• a chain reaction

• an electron avalanche

• fusion reactions

• radioactive decay

Tags

NGSS.HS-PS1-8

For which of the following problems would a scientist most likely use carbon-14?

• to calculate the age of the Earth's oldest rocks

• to calculate the age of a piece of bone

• to identify the elements that make up a rock

• to identify the elements that make up a bone