Radioactivity

Where does radioactivity have application in our lives?

• Medicine
• Energy (electricity)
• Agriculture
• All of the above

The rate at which a radioactive element decays is its ____.

• quarter life
• whole life
• wonderful life 
• half life

Tags

NGSS.HS-PS1-8

The three types of nuclear radiation in order of decreasing penetrating power are

• alpha, beta, gamma

• alpha, gamma, beta

• beta, alpha, gamma

• gamma, alpha, beta

Tags

NGSS.HS-PS1-8

Name the instrument used to detect radioactivity.

• voltmeter
• ohmeter
• seismograph
• geiger counter

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

If the half life of a radioactive element is 100yrs, how long would it take for the radioactivity to reduce by one half?

• 200yrs
• 100yrs
• 50yrs
• 300yrs

What is the atomic number of this isotope?

• 131

• 53

• 184

• 78

Tags

NGSS.HS-PS1-8

What is the mass number of this isotope?

• 131

• 53

• 184

• 78

Tags

NGSS.MS-PS1-1

How many protons does this isotope have?

• 131

• 53

• 184

• 78

Tags

NGSS.HS-PS1-8

Which type of nuclear radiation can be stopped by a sheet of paper?

• Alpha

• Beta

• Gamma