Isotopes & Radioactivity

Isotopes have different ____________

• Numbers of neutrons

• Mass numbers

• Stability

• All of these

Tags

NGSS.HS-PS1-8

Isotopes have the same ____________

• Mass number

• Number of electrons

• Number of neutrons

• All of these

Which of the following defines the element?

• The number of protons

• The number of neutrons

• The mass number

• The symbol

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

• Alpha

• Beta

• Gamma

• All three

Which type of radiation can be stopped by aluminum foil?

• Alpha

• Beta

• Gamma

• All three

Which type of radiation has a positively charged particle?

• Alpha

• Beta

• Gamma

• All three

Tags

NGSS.HS-PS1-8

Which type of radiation can be released during radioactive decay?

• Alpha

• Beta

• Gamma

• All three

Tags

NGSS.HS-PS1-8

Which type of radiation can be partially blocked by feet of lead or concrete?

• Alpha

• Beta

• Gamma

• All three

What element does X represent?

• Mg

• Si

• Fe

• Sr

Tags

NGSS.HS-PS1-1

Which particle does this symbol represnt?

• an alpha particle

• a beta particle

• a positron

• a photon