Radioactive Decay Lab

Tin-126 has a half-life of 100,000 years. How many years does it take for a 100 g sample to disintegrate to 12.5 g?

• 100,000 years

• 200,000 years

• 300,000 years

• 400,000 years

Tags

NGSS.HS-PS1-8

Which type of decay can be stopped by thin metal, such as aluminum?

• alpha

• beta

• gamma

• zeta

Tags

NGSS.HS-PS1-8

Which type of radioactive decay is represented by the equation?

• alpha

• beta

• gamma

• zeta

Tags

NGSS.HS-PS1-8

Radioactivity is the tendency of certain atoms to decay into lighter atoms, a process that emits energy. This is the definition of....

• radioactive decay

• daughter isotopes

• radioactive isotopes

• parent isotopes

Tags

NGSS.HS-PS1-8

What is an isotope that is unstable and decreases over time?

• Parent Isotope

• Daughter Isotope

Tags

NGSS.HS-PS1-8

The rate at which radioactive materials decay is (check all that apply)

• Predictable

• Linear

• Constant

• Logarithmic

Tags

NGSS.HS-PS1-8

The amount of time it takes unstable radioactive isotopes to decay by half is called what?

• half-life

• parent isotopes

• radioactive isotopes

• daughter isotopes

Tags

NGSS.HS-PS1-8

Fill in the blank for the missing part of the decay equation. What type of decay is this?

• e

• He

• alpha

• beta

Tags

NGSS.HS-PS1-8

Fill in the blank for the missing part of the decay equation. What type of decay is this?

• U-238

• U-240

• alpha

• beta

Tags

NGSS.HS-PS1-8

Fill in the blank for the missing part of the decay equation. What type of decay is this?

• Pb-204

• Pb-200

• alpha

• beta

Tags

NGSS.HS-PS1-8