You have 2.30 cm3 of Pt. Platinum is selling for $28.10/gram. How much Platinum do you have? Density of platinum is 21.45 g/cm3.

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >