All matter is made up of atoms.The word "atoms" comes from the Greek word (1)____ meaning uncuttable.The heave particles of the atom are in the (2)____,while (3)____ particled are on the outside.The (4)____ and (5)____are found in the nucleus .Their charges are (6)____ and (7)____.A group of atmos formed by the combination of atoms is called(8)____​