Answer:
Ammonia
Explanation:
Ammonia is the simplest possible molecule made with nitrogen and hydrogen. Methane is the simplest possible molecule made of carbon and hydrogen. Methanol is like methane, but it also has one oxygen atom as well.
Heat radiates from the fire and cooks the marshmallow because heat transfer.
Second orbital can hold 8 electrons
After 3 half-lives, 125 grams of the parent isotope will remain.