Where are atoms that tend to gain electrons located in the periodic table of the elements?
a. on the left side
b. on the right side
c. in the middle columns
d. starting on the fourth row

Cobalt-60 is an artificial radioisotope that is produced in a nuclear reactor and is used as a gamma-ray source in the treatment of certain types of cancer. if the wavelength of the gamma radiation from a cobalt-60 source is 1.00 × 10-3 nm, calculate the energy of a photon of this radiation.

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?

The tendency of water molecules to stick together is referred to as a) adhesion b) polarity c) cohesion d) transpiration e) evaporation