Please help! 377 ml of a stock solution is diluted with enough water to make 0.75 L of a 0.578 M solution. What is the molarity of the stock solution?

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.