Phys 232 Exam

What makes something radioactive?

• an unstable nucleus

• elements with an atomic number above 81

• contaminated sewage

• it decays over time

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NGSS.HS-PS1-8

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

• alpha, beta, gamma
• alpha, gamma, beta
• beta, alpha, gamma
• gamma, alpha, beta

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NGSS.HS-PS1-8

What is emitted during Beta Radiation?

• A high-energy Electron.
• Protons.
• Neutrons.
• Nuclei

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NGSS.HS-PS1-8

What is emitted during Gamma Radiation?

• Particles.
• Protons
• Beta Rays.
• Gamma Rays.

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NGSS.HS-PS1-8

TRUE or FALSE: gamma changes the atomic number.

• True
• False

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NGSS.HS-PS1-8

What is emitted during Alpha Radiation?

• A helium nuclei.
• A helium atom
• Gamma Rays.
• Positrons

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NGSS.HS-PS1-8

What is radioactive decay?

• The spontaneous breakdown of an atomic nucleus resulting in only energy release
• The spontaneous breakdown of an atomic nucleus resulting in only matter release
• The spontaneous breakdown of an atomic nucleus resulting in a release of energy and matter
• The decay of the use of radios and the increased use of televisions.

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NGSS.HS-PS1-8

When does radioactive decay occur?

• When the nucleus of an isotope is unstable
• When the nucleus of an isotope is stable
• When the electrons of an isotope are spinning
• When the electrons of an isotope are shared with another isotope

Tags

NGSS.HS-PS1-8