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.

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.