Most transition metal form more than one cation but aluminum forms the Al3+ cation only.
Answer:
A. absorbs light
Explanation:
For an electron to move from a lower energy level to a higher energy level, energy needs to be added to the atom.
In most cases this required energy will be light: The electron of the atom will absorb the energy of the light and move to a higher energy level.
When said electron comes back to the lower energy level, the atom will conversely give off light.
There both in our solar system
The answer is 67 108.0888km/s.
