Radioactivity G 11

This particle determines what element you have - the elements identity.

• electron
• proton
• neutron
• valence shell

Tags

NGSS.MS-PS1-1

A radioactive nuclide has a ____ stable nucleus than a non-radioactive nucleus of the same element.

• more

• less

• identical

• small

Tags

NGSS.HS-PS1-8

_______________ is the process by which unstable atoms emit radiation until they become stable.

• Radiation
• Chemical Reaction
• Radioactive Decay
• Isotopes

Tags

NGSS.HS-PS1-8

Which type of radiation releases an electron?

• Alpha radiation

• Beta radiation

• Gamma radiation

• Theta radiation

What particle is released when an unstable isotope undergoes alpha radiation?

• a helium nucleus

• an electron

• a photon of light

• a neutron

Tags

NGSS.HS-PS1-8

Which type of radioactive decay is occurring in this equation? 

• Alpha decay
• beta decay
• gamma decay
• positron emission

Tags

NGSS.HS-PS1-8

When nuclei decay, massive amounts of __________ is released.

• energy

• electrons

• protons

• neutrons

Tags

NGSS.HS-PS1-8

What type of decay is shown here

²³⁸₉₂U ---> ²³⁴₉₀Th + ⁴₂He.

• alpha

• beta

• gamma

Tags

NGSS.HS-PS1-8

Identify the type of nuclear decay shown here

²¹⁴₈₃Bi → ⁰_-1e + ²¹⁴₈₄Po

• alpha

• beta

• gamma

Tags

NGSS.HS-PS1-8

When a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element....

• remains the same
•   decreases by one.
• increases by one.
• increases by two.

Tags

NGSS.HS-PS1-8