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| Description: Atomic number: Number of protons in an atom’s nucleus. Ions: Positively or negatively charged atoms due to electron gain or loss Elements Basic building blocks of minerals Over 100 are known Defined by their number of protons Groups of the same type of atoms Picture Stats: Views: 334 Filesize: 288.02kB Height: 922 Width: 1308 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39347 |