Answer:
well ,if I have done my sum rights there are
14 atom in the one formula unit of aluminium carbonate.
You just balance it ifk the steps it’s easy
Qualitative (physical e. g. colour) and quantitative (numerical e. g. 3 grams) data
7 mass number is the number of protons and neutrons in an atom
When a electron from a higher energy level moves to the orbit of a lower energy shell its called a photon
phonton