Nuclear Energy TOD

Splitting a uranium atom is called - 

• fission
• fusion

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NGSS.HS-PS1-8

All of the following are problems of nuclear energy except ---

• storage of radioactive fuel
• air pollution
• security concerns
• natural disasters (tsunamis, earthquakes, etc.)

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NGSS.HS-ETS1-3

Which best describes an isotope?

• atoms of the same element with the same mass
• atoms of different elements with the same mass
• atoms of the same element with a different number of neutrons
• atoms of different elements with different number of neutrons

During beta decay, a nucleus .... 

• gives up two protons and two neutrons.
•   maintains the same number of protons and neutrons.
•   loses a proton and gains a neutron.
• gains a proton and loses a neutron. 

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NGSS.HS-PS1-8

When a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element....

• remains the same
• decreases by one.
• increases by one.
• increases by two.

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NGSS.HS-PS1-8

The most penetrating type of radiation is the ____. 

• alpha particle
• gamma ray
• beta particle
• uranium

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NGSS.HS-PS1-8

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

• alpha particle
• electroscope
• beta particle
• gamma ray

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NGSS.HS-PS1-8

What is Half-life?

• The amount of time it takes for some of the nuclei in a sample of the isotope to decay
• The amount of time it takes for half the electrons in a sample of the isotope to decay
• The amount of time it takes for half the nuclei in a sample of the isotope to decay
• the amount of time it takes to double the nuclei in a sample of the isotope to decay

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NGSS.HS-PS1-8

Barium-122 has a half-life of 5 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?

• 0.25g
• 2.0g
• 20g
• 40g

When Cesium-137 undergoes radioactive decay it emits a beta particle. What isotope will result from this decay?

• Cesium 136
• Barium 137
• Iodine 133
• Cesium 137

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NGSS.HS-PS1-8