Nuclear chemistry

When one large nucleus is split into two smaller nuclei, the process is nuclear _____.

• Fusion
• Fission
• Tracing
• Decay

Tags

NGSS.HS-PS1-8

Which type of radiation is most penetrating?

• Gamma
• They are equal
• Beta
• Alpha

The least penetrating type of radiation

• Alpha particle
• Beta particle
• gamma ray

Has a moderate penetrating power.  It can penetrate 4 mm into body tissue and can be stopped by metal foil.

• Alpha
• Beta
• Gamma

Takes two small nuclei and combines them into a larger nucleus

• fission
• fusion

Tags

NGSS.HS-PS1-8

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

What is Half-life?

• The amount of time it takes for some of the nuclei in a sample of the isotope to decay
• The amount of time it takes for half the electrons in a sample of the isotope to decay
• The amount of time it takes for half the nuclei in a sample of the isotope to decay
• the amount of time it takes to double the nuclei in a sample of the isotope to decay

Tags

NGSS.HS-PS1-8

In order of most to least penetrating radiation we have

• Alpha , Beta,  Gamma
• Beta , Gamma , Alpha
• Gamma, Beta, Alpha
• Gamma, Alpha, Beta

Tags

NGSS.HS-PS1-8

When an element loses protons, its __________changes.

• protonic number
• electronic number
• neutronic number
• atomic number

An electron that is emitted during radioactive decay is a

• neutron
• gamma ray
• alpha particle
• beta particle

Tags

NGSS.HS-PS1-8

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

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

Tags

NGSS.HS-PS1-8