The idea that atoms radiate energy only when their electrons move from higher to lower energy levels was first advanced by: Group of answer choices Albert Einstein Ernest Rutherford J. J. Thomson Niels Bohr Christian Doppler

What is the mass of 4 molecules of co2

Why did southern business leaders want to increase the number of slaves

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.