2 of carbon, 1 of hydrogen, and 2 of oxygen. So well, 5.
IN SHORT: 5.
Atoms that do not have any protons are called neutrons.
The same as any other atoms.
Yes, ALL matter has atoms. If it exsits, it has atoms.
No.
no
No all rocks are made of atoms.
All atoms of any single element have the same number of protons and electrons.
Hydrocarbons such as methane (CH4), ethane (C2H6), and propane (C3H8) do not contain any oxygen atoms.
If you mean carbon-12, there are 6.022 x 1023 atoms in one mole. This is true of any element and any of its isotopes. Therefore, one mole of any element or a particular isotope is 6.022 x 1023 atoms.
All the atoms have the same number of protons (element type).
Yes. Any matter you will encounter on earth is composed of atoms.
none - it's a pure gas, just oxygen none - it's a pure gas, just oxygen