Nuclear Decay

The process of nuclear change in an atom of radioactive material is called... 

• nuclear decay
• nuclear mass
• isotopes
• radon

Tags

NGSS.HS-PS1-8

During beta decay, a nucleus .... 

• gives up two protons and two neutrons.
•   maintains the same number of protons and neutrons.
•   loses a proton and gains a neutron.
• gains a proton and loses a neutron. 

Tags

NGSS.HS-PS1-8

Radioactive materials have unstable...

• electrons
• protons
• nuclei
• neutrons

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NGSS.HS-PS1-8

A helium nucleus with two protons and two neutrons is called a(n) ____.  

• alpha particle
• electroscope
• beta particle
• gamma ray

Tags

NGSS.HS-PS1-8

Carbon-14 and carbon-12 have the same number of protons but a different number of neutrons. These different forms of the same element are called

• radioactive

• isotopes

• nuclei

• tracers

The mass number of a nucleus is equal to ______.

• the number of protons plus the number of neutrons

• the number of electrons

• the number of protons

• the number of neutrons

Tags

NGSS.HS-PS1-8

What type of nuclear decay is represented in this illustration?

• beta decay

• gamma radiation

• alpha decay

• nuclear fusion

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NGSS.HS-PS1-8

How does the alpha decay of a nucleus cause the nucleus to change?

• Only the number of protons decreases.

• Only the number of neutrons decreases.

• The number of neutrons and the number of protons decrease.

• The number of protons increases and the number of neutrons decreases.

Tags

NGSS.HS-PS1-8

A neutron changes into a proton and an electron releasing this type of particle.

• alpha decay

• beta decay

• gamma decay

• all of the above

• alpha & beta decay

Tags

NGSS.HS-PS1-8

A helium nucleus with two protons and two neutrons is called a(n) ____.  

• alpha particle
• electroscope
• beta particle
• gamma ray

Tags

NGSS.HS-PS1-8