Rank the following samples in mass from least to greatest. a) 6 x 1023 S atoms b) 0.75 mol of Cu atoms c) 1.5 mol of N atoms d) 3 x 1023 Na atoms

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n