what is the difference between nucleus and molecule
1 Molecule is a group of two or more atoms combined together so it is bigger. 2  Atom consists of nucleus (containing protons and neutrons) and electrons. 3  Molecule consists of combination of two or more like or different atoms chemically bound together e.g.
The protons and neutrons cluster together in the central part of the atom, called the nucleus, and the electrons 'orbit' the nucleus. A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing just one proton and one electron.