PERIODIC TABLE OF ELEMENTS NOTESHEET

number of PROTONS (positive charges) and ELECTRONS (negative charges). Elements on the Periodic Table that are very . REACTIVE. can bond (or join) easily with other elements. The most reactive elements on the Periodic Table are found in Groups . ONE (Alkali Metals) and . SEVENTEEN (Halogens). The elements listed in Group 18 are called . NOBLE GASES ................
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