Chapter 10 Test

What is the time required for half of a radioactive sample to decay?

• Decay time

• Half-life

• Reaction time

• Nuclear time

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NGSS.HS-PS1-8

The strong nuclear force binds together:

• Electrons and protons

• Neutrons and electrons

• Protons and neutrons

• Atoms and molecules

Scientists estimate the age of archaeological sites using:

• Chemical bonding

• Radioactive decay

• Fossil comparison

• Optical dating

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After one half-life, what fraction of a radioactive sample remains?

• One-quarter

• One-third

• One-half

• One-eighth

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Which of the following is NOT true about transuranium elements?

• They are all radioactive

• They are generally not found in nature

• They are produced through artificial transmutation

• They are commonly found in the Earth's crust

What is released in a nuclear fission reaction?

• Neutrons and energy

• Electrons and light

• Protons and sound

• Atoms and gamma rays

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NGSS.HS-PS1-8

What is nuclear fusion?

• The splitting of an atom

• The combination of two nuclei to form a larger nucleus

• The decay of radioactive isotopes

• The breakdown of electrons

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NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

The archaeological site in Cactus Hill, Virginia, is at least how many years old?

• 10,000

• 15,000

• 20,000

• 25,000

If a fossil has one-fourth the carbon-14 of a living organism, how old is it?

• 1,000 years

• 5,730 years

• 11,460 years

• 50,000 years

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NGSS.HS-PS1-8

The first artificial transmutation was performed by:

• Albert Einstein

• Marie Curie

• Ernest Rutherford

• Niels Bohr