Which statement about exothermic reactions is correct?
a. Energy is always created in the form of heat.
B. Energy is transferred from the surroundings to the reactants.
C. Energy is used to force electrons to move to higher energy levels.
D. Energy is transferred from the reactants to the surroundings.

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.