Exploring Nuclear Chemistry Concepts

What is the process called when an unstable atomic nucleus loses energy by emitting radiation?

• Radioactive decay

• Nuclear fission

• Nuclear fusion

• Ionization

Tags

NGSS.HS-PS1-8

Which subatomic particle is released during beta decay?

• Proton

• Neutron

• Electron

• Alpha particle

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NGSS.HS-PS1-8

What is the main fuel used in most nuclear reactors?

• Uranium-235

• Carbon-14

• Plutonium-239

• Hydrogen-1

Tags

NGSS.HS-PS1-8

Which process powers the sun and other stars?

• Nuclear fission

• Nuclear fusion

• Radioactive decay

• Chemical combustion

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What is the term for the time it takes for half of a radioactive substance to decay?

• Decay constant

• Half-life

• Mean life

• Activity

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NGSS.HS-PS1-8

Which device is commonly used to measure ionizing radiation?

• Thermometer

• Geiger counter

• Barometer

• Voltmeter

Which isotope is commonly used in smoke detectors?

• Carbon-14

• Americium-241

• Uranium-238

• Iodine-131

What is a major safety concern when handling radioactive materials?

• High temperature

• Ionizing radiation exposure

• Loud noise

• Strong odor

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NGSS.HS-PS1-8

Which of the following is an application of radioisotopes in medicine?

• X-ray imaging

• Cancer treatment

• Ultrasound

• MRI

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NGSS.HS-PS1-8

Which of the following best describes nuclear fission?

• Combining two light nuclei to form a heavier nucleus

• Splitting a heavy nucleus into two lighter nuclei

• Emission of alpha particles

• Absorption of neutrons by a nucleus

Tags

NGSS.HS-PS1-8