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Date: 2014-02-28 13:55:41Periodic table Chemical element Dmitri Mendeleev Atomic number Electron Matter Alkali metal Symbol Chemistry: A Volatile History Chemistry Science Physics | Matter Links: Science in Action Textbook ( pgsUnit 2 Matter and Chemical Change 2.0 An understanding of the nature of matter has developed through observations over time.Add to Reading ListSource URL: www.edquest.caDownload Document from Source WebsiteFile Size: 655,41 KBShare Document on Facebook |