Atoms are made of protons, neutrons and electrons. In many science classes, we say that the protons, neutrons and electrons are the building blocks of atoms.
If you want to go further, both protons and neutrons are made of up quarks and down quarks. (Protons and neutrons are composite particles.) Note that electrons cannot, as far as we know, be split into anything smaller. In that light, you could say "up quarks, down quarks and electrons make up atoms".
There are three atoms in an ozone molecule: one oxygen atom in the center and two oxygen atoms on the sides.
The elements that must combine to make propane are C and H, using symbols. These are carbon and hydrogen, respectively.
They make molecules. Molecules are a bunch of Atoms together.
molecules and compounds
Aluminum is an element. It is made entirely of aluminum atoms.
Propane is composed of three carbon atoms and eight hydrogen atoms, making it a hydrocarbon compound with the chemical formula C3H8. These elements combine through covalent bonds to form the propane molecule.
atoms
to make babies
2 Hydrogen atoms can combine with 1 Oxygen atom to make water. H2O
Nothing. An atom is primarily empty space. If the nucleus of a hydrogen atom was a football, the atom itself would be the size of a football stadium, with nothing else inside but the football. There are three things that make up the volume of atoms. The three things that make up the volume of atoms are protons, electrons and neutrons.
Fusion
Different kinds of atoms combine to form molecules, which are the building blocks of all substances. The specific arrangement and combination of atoms determine the properties and characteristics of different substances. For example, hydrogen and oxygen atoms combine to form water molecules, while carbon atoms combine to form various organic compounds.