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Special thanks to Ms. Kathleen Dombrink's advanced chemistry class of Florissant, Missouri for pointing out an error in SW's Sept. 1, 2003 issue, The final sentence of clue number 2 in "Name That Element" on p. 19 should read: (Hint: Carbon, part of the same class as the mystery element, shares similar chemical properties.) in chemistry, elements of the same group occupy the same column of the periodic table, while elements of the same class may occupy different groups and periods. Elements that share a group or a class have similar chemical properties. SW apologizes for any undue stress this clue may have caused our element sleuths. Keep up the good work!
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Publication:Science World
Article Type:Correction Notice
Date:Nov 3, 2003
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