Radioactivity and Nuclear Reactions

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

Marie Curie was the first woman to win a...

• Golden Globe
• Nobel Prize
• Oscar
•  Emmy Award

What is an isotope?

• forms of the same element that contain equal numbers of electrons but different numbers of protons

• forms of the same element

• forms of the same element that contain equal numbers of protons but different numbers of neutrons

• An atom with no nucleus

Tags

NGSS.HS-PS1-8

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

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

Tags

NGSS.HS-PS1-8

Which particles make up the nucleus of an atom?

• protons and neutrons
• electrons and protons
• electrons, protons, and neutrons
• electrons and neutrons

Tags

NGSS.MS-PS1-1

When nuclei decay, massive amounts of __________ is released.

• energy

• electrons

• protons

• neutrons

Tags

NGSS.HS-PS1-8

Each element with an atomic number greater than 83 is ____.

• stable
• synthetic
• lighter than air
• radioactive

Tags

NGSS.HS-PS1-8

What is the force that makes protons and neutrons in the nucleus attract each other and stay together?

• strong force

• electromagnetic force

• weak force

• gravity