The cell theory was constructed by s<span>chleiden and schwann.</span>
By polishing it, it becomes more clear which becomes so Clear that you could see your reflection.
F is the symbol for fluorine which is a single atom. A molecule is two or more atoms together, which makes F not a molecule.
Answer:
The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.
Explanation:
