Block, SkipCaptcha, nsAm_Govt_101RO, nsAm_Govt_101RW, nsAm_Govt_101_ta, nsTeam2RO, nsTeam2RW, nsTeam2_talkRO, nsTeam2_talkRW
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Atomic number is the number that is above an element's symbol on the [[Periodic Table of the Elements]]. It represents the number of protons in the nucleus of the atom.