An element's atomic number is the
a. mass of the atom.
b. weight of the atom.
c. number of protons in an atom's nucleus.
d. sum of the protons and neutrons in an atom.

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.