NUCLEAR REACTIONS AND ATOMS

Which force holds protons and neutrons together in the atom nucleus?

• electric force

• gravity

• strong nuclear force

• weak nuclear force

During nuclear fission, a nucleus _________.

• grows

• divides

• shrinks

• combines with another

The splitting of a nucleus into smaller nuclei is

• fusion
• fission
• half-life
• gamma radiation

Tags

NGSS.HS-PS1-8

When nuclei decay, massive amounts of __________ is released.

• energy

• electrons

• protons

• neutrons

Tags

NGSS.HS-PS1-8

Atoms of the same element that have different numbers of neutrons and different mass numbers:

• nucleons

• isotopes

• gamma rays

• ions

What types of reactions will produce radiation?

• Fission

• Fusion

• Both fission and fusion

• Neither fission nor fusion

Which type of nuclear radiation is being emitted here?

• Alpha
• beta
• gamma 
• none

Tags

NGSS.HS-PS1-8

Which type of nuclear radiation is being emitted here?

• alpha
• beta
• gamma
• none

What particle completes this reaction?

• alpha particle
• beta particle
• gamma particle
• neutron

Tags

NGSS.HS-PS1-8

Why does beta decay occur?

• The nucleus is too large to be stable

• The proton to neutron ratio is unstable

• The nucleus is in an excited state. This usually follows other types of decay.