An atom s mass number equals the number of
a. protons plus the number of electrons.
c. protons.
b. protons plus the number of neutrons.
d. neutrons.

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.