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| Description: Atoms: Smallest particles of matter Nucleus: central part of an atom that contains Protons: positive electrical charges Neutrons: neutral electrical charges Electron shells : Surround nucleus. Contain electrons – negative electrical charges Picture Stats: Views: 342 Filesize: 65.56kB Height: 921 Width: 585 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39346 |