2.1

Question 1

What charge, mass, and function does a proton have?

Answer 1

Mass: 1 amu
Charge: Positive
Function: Forms the nucleus.

Question 2

What charge, mass, and function does a electron have?

Answer 2

Mass: none
Charge: negative
Function: Creates currents of electricity.

Question 3

What charge, mass, and function does a neutron have?

Answer 3

Mass: 1 amu
Charge: none
Function: Stabilizes atom

Question 4

Explain why isotopes can be useful in scientific research?

Answer 4

Radioactive isotopes differ in the stability of their nuclei. Measuring the speed of decay allows scientists to date archaeological finds, and even the universe itself. Stable isotopes can be used to give a record of climate change. Isotopes are also commonly used in medical imaging and cancer treatment