Nuclear Chemistry Exam Review

Which of the following does NOT describe a nuclear reaction?

• associated with large energy changes

• atoms of one element are often converted into atoms of another element.

• occur when nuclei combine, split, and emit radiation

• involve only valence electrons

Answer explanation

The correct choice is 'involve only valence electrons' because nuclear reactions do not involve only valence electrons, they involve changes in the nucleus of atoms.

Tags

NGSS.HS-PS1-8

_____ is used in cancer treatment to destroy tumor cells.

• Nuclear stability

• Radiation therapy

• Diagnostic imaging

• Nuclear energy

Which statement is true about fusion?

• Fusion occurs on the sun and other stars.

• Fusion chain reactions are used in nuclear power plants.

• Fusion involves splitting nuclei into smaller nuclei.

• The conditions required for fusion are easy to produce.

Tags

NGSS.HS-PS1-8

NGSS.HS-ESS1-1

When {238} U {92} becomes {234} Th {90}, what type of decay has taken place?

• alpha

• beta

• gamma

• positron

Tags

NGSS.HS-PS1-8

Which of the following is composed of high-energy electromagnetic radiation?

• alpha particles

• beta particles

• gamma rays

• x-rays

Tags

NGSS.HS-PS4-3

Which statements are true about fission? Two answer choices are required.

• Fission occurs in the sun.

• Fission is used in nuclear power plants.

• Fission occurs when a heavier nucleus splits into light nuclei.

• Fission occurs when light nuclei combine to form a heavier nucleus.

Tags

NGSS.HS-PS1-8

_____ uses electromagnetic radiation and certain other technologies to produce images of internal structures of the body for the purpose of accurate diagnosis. One example is a PET scan, which helps doctors locate tumors in a patient.

• Diagnostic imaging

• Nuclear energy

• Nuclear power plant

• Radiation therapy

Tags

NGSS.HS-PS4-3

Complete this nuclear equation for gamma ray emission.

A =

B =

Y =

Z =

X =

(a)  

Tags

NGSS.HS-PS1-8

Which of these is a high-energy electron?

• beta particle

• helium nucleus

• alpha particle

• positron

How are fusion and fission similar?

• Both processes require a large nucleus breaking down into smaller nuclei.

• Both processes require small nuclei combining to form a larger nucleus.

• Both are nuclear processes that produce small amounts of energy and cause the

  formation of similar isotopes.

• Both are nuclear processes that produce large amounts of energy and cause the

  formation of new isotopes.

Tags

NGSS.HS-PS1-8