Copper will most likely react with which of the following elements? silver (Ag)
actinium (Ac)
chlorine (Cl)
yttrium (Y)

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

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.