Nuclear Reactions

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

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NGSS.HS-PS3-5

Takes two small nuclei and combines them into a larger nucleus

• fission
• fusion

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NGSS.HS-PS1-8

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Which type of nuclear radiation is being emitted here?

• Alpha
• beta
• gamma 
• none

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NGSS.HS-PS1-8

Which type of nuclear radiation is being emitted here?

• alpha
• beta
• gamma
• none

Tags

NGSS.HS-PS1-8

What particle completes this reaction?

• alpha particle
• beta particle
• gamma particle
• neutron

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NGSS.HS-PS1-8

What makes a nucleus unstable?

• if it has more protons than electrons

• the strong nuclear forces and electrostatic forces are unbalanced

• the bonds between the nucleus and the electrons are unbalanced

• if the nucleus is too heavy

Tags

NGSS.HS-PS1-8

When nuclei decay, massive amounts of __________ is released.

• energy

• electrons

• protons

• neutrons

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NGSS.HS-PS1-8

The force that holds neutrons and protons together in the nucleus is known as the:

• weak nuclear force

• hydrogen bonding

• strong nuclear force

• electronegative force

You have 20 grams of uranium that has a half-life of 2 seconds, how much will be left after 4 seconds?

• 5 grams

• 2 seconds

• 6 grams

• 8 grams

Tags

NGSS.HS-PS1-8