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A nuclear reaction occurs when the atom is

• ready to give away electrons

• stable

• in need of electrons

• unstable

Tags

NGSS.HS-PS1-8

The atomic number increases by one during what type of radioactive decay?

• alpha

• beta

• gamma

• none of the choices

Tags

NGSS.HS-PS1-8

X-rays are an example of what type of radiation?

• alpha

• beta

• gamma

• transmutation

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

The atomic number decreases by two during what type of radiation?

• alpha

• beta

• gamma

• none of the choices

Tags

NGSS.HS-PS1-8

Beta radiation is the

• transmutation of a neutron into a proton and electron. The electron is emitted.

• transmutation of a neutron into a proton and electron. The proton is emitted.

• transmutation of a proton into a neutron and electron. The electron is emitted.

• transmutation of a proton into a neutron and electron. The proton is emitted.

Tags

NGSS.HS-PS1-8

Has the highest penetrating power.  Can penetrate our body.  Even several cm thick of lead or several meters thick of concrete cannot stop all of it.

• Alpha
• Beta
• Gamma

Has the lowest penetrating power.  Can only penetrate 0.05 mm into the body and can be stopped by the skin.

• Alpha
• Beta
• Gamma
• Electron capture

Radioactive materials have unstable...

• electrons
• protons
• nuclei
• neutrons

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

What term is used to describe an atom that changes into another element because of radioactive decay?

• gamma ray

• transmutation

• alpha particle

• electron

Tags

NGSS.HS-PS1-8