What differs between a radioactive isotope and a stable isotope? a. radioactive isotopes last longer. b. radioactive isotopes last for less time. c. there is no difference. d. stable isotopes are shorter.

What does x represent in the formula for the compound xcl4?

What is the correct lewis structure for chloroform chcl3

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.