Atoms, Isotopes, and Radiation Basics

Which of the following is NOT a subatomic particle found in an atom?

• Proton

• Electron

• Neutron

• Photon

Tags

NGSS.HS-PS1-8

What does the atomic number of an element represent?

• Number of neutrons

• Number of protons

• Number of electrons and neutrons

• Number of isotopes

Which of the following particles has a positive charge?

• Electron

• Neutron

• Proton

• Alpha particle

What is the mass number of an atom with 6 protons and 8 neutrons?

• 6

• 8

• 12

• 14

Which of the following is a radioactive particle that is the least penetrating and can be stopped by a sheet of paper?

• Alpha particle

• Beta particle

• Gamma ray

• Neutron

How do you calculate the number of neutrons in an atom?

Tags

NGSS.HS-PS1-8

Which element is represented by the symbol "Na" on the periodic table?

• Nitrogen

• Sodium

• Neon

• Nickel

What is an isotope?

• An atom with a different number of protons

• An atom with a different number of electrons

• An atom with a different number of neutrons

• An atom with a different atomic number

Tags

NGSS.HS-PS1-8

Which type of radiation is the most penetrating?

• Alpha

• Beta

• Gamma

• Neutron

What is the main use of radiation therapy in medicine?

• To diagnose diseases

• To treat bacterial infections

• To treat cancer

• To reduce fever

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-5