Radioactivity

An isotope of an element has the same number of _________, but a different number of _________.

• Protons, electrons
• Protons, neutrons
• Electrons, neutrons

What type of radioactive decay is shown here?

• Alpha decay
• Beta decay
• Gamma decay

Which type of radiation releases an electron?

• Alpha radiation
• Beta radiation
• gamma radiation

What type of radiation can be stopped by clothing or a piece of paper?

• Alpha radiation
• Beta radiation
• gamma radiation

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

• an helium nucleus
• an electron
• a photon of light

What type of decay is shown here

• alpha decay
• beta decay
• gamma decay

Tags

NGSS.HS-PS1-8

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

• electron
• proton
• neutron
• valence shell

An element with a mass number of 11 and an atomic number of 5 has how many neutrons?

• 11
• 5
• 6
• 16

Tags

NGSS.MS-PS1-1

What makes something radioactive?

• elements with an atomic number above 81
• an unstable nucleus
• contaminated sewage
• It decays over time

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