What could j. j. thomson conclude from his experiments?
a)atoms are mostly empty space.
b)most of the mass of the atom is concentrated in the center.
c)atoms must balance positive and negative particles.
d)atoms are indivisible.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-