The gold foil experiment demonstrated that 1) Electrons travel in circular paths around the nucleus
2) Electrons and protons are distributed evenly throughout the atom
3) Electrons are small, negative particles
4) Atoms are mostly empty space with a small, dense, positive center

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.