In an electrically neutral atom, the number of protons equals the number of neutrons.
protons equals the number of electrons.
neutrons equals the number of electrons.

A. Protons equals the number of neutrons
B. Protons equal the number of electrons
C. Neutrons equals the number of electrons

B

B

Explanation:

because protons have a +1 charge and electrons have a -1 charge, so if an atom is neutral it must have the same amount of protons and neutrons

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)