Nuclear Reactions

In which type of reaction do atoms combine to form a heavier nucleus?

• chemical

• fission

• fusion

• radioactive decay

Tags

NGSS.HS-PS1-8

Which type of reaction is initiated by neutron bombardment, resulting in an unstable nucleus that splits apart?

• chemical

• fission

• fusion

• radioactive decay

Tags

NGSS.HS-PS1-8

Which type of reaction is this?

• chemical

• fission

• fusion

• radioactive decay

Tags

NGSS.HS-PS1-8

Which type of reaction is this?

• chemical

• fission

• fusion

• radioactive decay

Tags

NGSS.HS-PS1-8

Which type of reaction is used to create energy in nuclear power plants?

• chemical

• fission

• fusion

• radioactive decay

Tags

NGSS.HS-PS1-8

If 10 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of iodine-131 is 8 days.

• 1.25mg
• 1.25g
• 10g
• 10mg

Tags

NGSS.HS-PS1-8

The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?

• 3.0g
• 0.25mg
• 0.3g
• 0.25g

Tags

NGSS.HS-PS1-8

What percentage of rubidium-87 atoms will be left after four half lives?

• 25.0%

• 12.5%

• 6.25%

• 3.125%

Tags

NGSS.HS-PS1-8

The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?

• 3.0g
• 0.25mg
• 0.3g
• 0.25g

Tags

NGSS.HS-PS1-8

What is the half-life of iodine-131?

• 32 days
• 8 days
• 16 days
• 24 days

Tags

NGSS.HS-PS1-8