6 moles
This is because you have to use the molar ratio (in this case, it is, 1 : 3) so
2 x 3 = 6 moles
The energy of an electron can be change only by set amounts.
The electrons in an energy level of an atom can only move to a higher or lower energy level only if it absorbs or emits a certain amount of energy. If the electron does not have enough energy to move to the next energy level then it will never move.
True:
They are Nobel gassed! They are un-reactive because there outer shell (valence) is completely full. This means they do not want to lose or gain on electron so they do not react.
Energy which a body possesses by virtue of being in motion.
