If a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, it’s total energy is

kinetic energy will increase till the slope

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.