D. you are not making any motion
The Calcium atom has 2 valence electrons but a Calcium ion will have no electrons because it is a cation ion. Meaning that there are more protons than electrons. Also, the normal calcium symbol is Ca but the calcium ion is Ca²⁺
I hope this wasn't too late
Because despite being natural they still harm the ozone layer and cause breathing problems, even suffocation.
Answer:
it is ammonia nitro oxide
