Unit 4 - Quiz 1 Review

Radioactive materials have unstable...

• electrons
• protons
• nuclei
• neutrons

Two atoms of the same element but with different mass numbers are called________

• electrons
• isotopes
• ions
• reaction partners

Isotopes are elements with a different amount of

• protons
• neutrons
• electrons
• nuclei

How many neutrons does this isotope of lithium have?

• 8
• 3
• 11

• 5

What do these isotopes of carbon all have in common?

• neutrons & mass number
• atomic number and neutrons
• atomic number and electrons
• protons, atomic number, and mass number

How many neutrons in C-14?

• 6
• 7
• 14
• 8

View the Image and MATCH the response with the correct letter!

• C

• 21

• E

• 38

• D

• 52

• B

• 19

• A

• Sr-90

True or False:

All radiation is Ionizing and harmful

• True

• False

True or False:

Radon Gas can enter one's home through cracks, windows, pipes, and any other exposure to the surrounding soil

• True

• False

True or false

Radiation is the breaking down of a nucleus by releasing particles and energy

• True

• False