Unit 6: Nuclear Chemistry

What is a beta particle made of?

• One proton

• A helium particle

• One electron

• One proton and one neutron

Tags

NGSS.HS-PS1-8

Which of these processes describes a nuclear fusion reaction?

• A nucleus absorbs energy to produce lighter nuclei.

• A nucleus splits to produce energy and lighter nuclei

• Two nuclei bind together to produce energy and heavier nuclei.

• Two nuclei bind together to produce energy and a lighter nuclei.

Tags

NGSS.HS-PS1-8

Of the main types of radiation emitted from naturally radioactive isotopes, which is the hardest to block?

• Alpha deca

• Gamma Decay

• Beta decay

• They are all blocked using the same method

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NGSS.HS-PS1-8

What is radioactive decay?

• The spontaneous breakdown of an atomic nucleus resulting in only energy release
• The spontaneous breakdown of an atomic nucleus resulting in only matter release
• The spontaneous breakdown of an atomic nucleus resulting in a release of energy and matter
• The decay of the use of radios and the increased use of televisions.

Tags

NGSS.HS-PS1-8

Which type of nuclear radiation is being emitted here?

• Alpha
• beta
• gamma 
• none

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NGSS.HS-PS1-8

When does radioactive decay occur?

• When the nucleus of an isotope is unstable
• When the nucleus of an isotope is stable
• When the electrons of an isotope are spinning
• When the electrons of an isotope are shared with another isotope

Tags

NGSS.HS-PS1-8

Isotopes of the same element have different ____________. 

•  numbers of protons  
• numbers of electrons
•  symbols 
• numbers of neutrons

This is an example of...

• Fission  reaction
• Fusion reaction
• Decomposition reaction
• Decay

Tags

NGSS.HS-PS1-8

What is the mass of an alpha particle?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-8

What is the definition of an isotope?

• An atom with different electron number to proton number
• An atom with different proton number from neutron number
• An atom with different number of protons from the periodic table
• An atom with a different number of neutrons from the periodic table