to what number the element can count to
With a line
4 atoms of helium.
Atoms are too small to see.
6.3x10^24 aluminum atoms represent 1 mole of aluminum atoms because Avogadro's number is approximately 6.022x10^23.
It usually represent the amount of atoms in a molecule, i.e. Na2CO3 + 2HCl --> 2NaCl + CO2 +H2O So, in the first compound, there are 2 sodium atoms, one carbon atom and 3 oxygen atoms. In water, there is one hydrogen atom and 2 oxygen atoms..
dinosaurs
both are pure substances, but atoms represent the smallest bits of elements. compounds are chemically combined atoms, molecules represent the smallest bits of compounds. atoms cannot be broken down into simpler substances, compounds can be broken down into atoms.
Protons, nuetrons, and electrons
With a line
4 atoms of helium.
Atoms are too small to see.
atomic number
This is the picture.
6.3x10^24 aluminum atoms represent 1 mole of aluminum atoms because Avogadro's number is approximately 6.022x10^23.
Different atomic numbers represent different elements.
scaled up models
scaled up models