Nuclear Reaction

What makes something radioactive?

• elements with an atomic number above 81

• an unstable nucleus

• contaminated sewage

• It decays over time

Tags

NGSS.HS-PS1-8

Has a mass of 4 and a charge of +2

• Alpha

• Beta

• Gamma

Tags

NGSS.HS-PS1-8

Which of these diagrams represents the type of nuclear reaction that produces energy in the Sun?

• A

• B

• C

• D

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

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

• alpha particle

• electroscope

• beta particle

• gamma ray

Tags

NGSS.HS-PS1-8

Which equation correctly represents the alpha decay of polonium-214?

• A

• B

• C

• D

Tags

NGSS.HS-PS1-8

• A

• B

• C

• D

Tags

NGSS.HS-PS1-8

... has that symbol

• Alpha

• Beta 

• Gamma

• positron

Tags

NGSS.HS-PS1-8

A radioactive nucleus has a ____ stable nucleus than a non-radioactive nucleus of the same element.

• more

• less

• identical

• small

Tags

NGSS.HS-PS1-8

During nuclear fission, a nucleus _________.

• grows

• divides

• shrinks

• combines with another

Tags

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.

Tags

NGSS.HS-PS1-8