Nuclear Balancing

This type of reaction occurs on the sun and in stars.

• Fission
• Fusion
• synthesis
• decomposition

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

The time required for half of the nuclei of an isotope to decay.

• Half-life
• radioactive dating
• critical mass
• critical point

Tags

NGSS.HS-PS1-8

This type of  reaction occurs when a heavy nucleus, such as U-235, splits into two or more parts. [KEY WORD: SPLIT]

• Fission
• Fusion
• Chain reaction
• synthesis

This is an example of...

• Fission  reaction
• Fusion reaction
• Decomposition reaction
• Combustion

Negatively charged particles found outside of the nucleus are called

• electron
• protons
• neutrons
• nucleons

Positively charged particles found in the nucleus of an atom are called

• protons
• neutrons
• electrons
• isotopes

Tags

NGSS.MS-PS1-1

Positively charged particles that consist of two protons and two neutrons are called

• alpha particles
• beta particles
• gamma rays
• neutron emissions

An electron that is emitted during radioactive decay is a

• neutron
• gamma ray
• alpha particle
• beta particle

Tags

NGSS.HS-PS1-8

The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 75 years if the initial amount is 100 grams?

• 75
• 50
• 25
• 12.5

After the third half-life, how much of the sample is left?

• 1/2
• 1/3
• 1/16
• 1/8