Completar Frases Manuelvela1Versión en línea The structure of matter 1 por tekneso tekno 1 particles Protons nucleus neutral core smallest atoms tiny lightweight Matter central surrounded Atoms Neutrons is composed by particles called which are the particles of any element consist of a and dense which is called that is made up of : - ( positively charged particles ) - ( charged particles ) and it is by one or more electrons ( negatively charged )