Need to lose one electron to form a stable octet
b. alkali metals
c. alkaline earth metals
d. noble gases
e. lanthanides

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?