Nothing happens because a physical change only changes the appearance of the substance, whereas a chemical change transforms the substance into something completely different.
i.e. (chemical change) wood + fire = ash
(physical change) wood + axe = smaller pieces of wood
Answer:
I think the answer is 3. Highest energy level first, so it fills in the inside rings first
Answer:
b.plasma
Explanation:
they jump in a exited energy level and by doing that they give off light
I think it might be lead? I'm not quite too sure though. You might have to research more into it.