Which of the following best describes the relationship between oxygen and chlorine? A Oxygen and chlorine have the same symbols. B Oxygen atoms have fewer protons than chlorine atoms. C Oxygen and chlorine have the same properties. D Oxygen atoms have twice as many protons as chlorine atoms.

Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little