Which of the following trends is decreasing as you move from left to right across this portion of the Periodic Table? A.) Atomic number

B.) Metallic character (becoming less metal like)

C.) Number of atomic orbitals

D.) Number of valence electrons

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.

Which item is most likely part of the safety contract

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.