Answer:
Explanation:
Common Examples of the Law of Definite Proportions
Water, written as the chemical compound H20, is made up of atoms of hydrogen and oxygen. If one oxygen atom is combined with two hydrogen atoms, water is created.
I think that the answer could be A. X and Y
Particles that orbit the nucleus are called electrons.
Explanation: Electrons are negatively charged particles arranged in orbits around the nucleus of an atom and determining all of the atom's physical and chemical properties except mass and radioactivity.
I am pretty sure that the element is Iron (Fe)
? I DONT REALLY KNOW THE ANSWER IM IN 8TH GRADE