• smart ubom periodic table
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    how many group do we have in a periodic table and mention     13 August 2010Comment
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    • andy chuks We have 18 groups in Standard Periodic Table

      The periodic table groups are as follows (in the brackets are shown the old systems: European and American):
      Group 1 (IA,IA): the alkali metals or lithium family
      Group 2 (IIA,IIA): the alkaline earth metals or beryllium family
      Group 3 (IIIA,IIIB): the scandium family
      Group 4 (IVA,IVB): the titanium family
      Group 5 (VA,VB): the vanadium family
      Group 6 (VIA,VIB): the chromium family
      Group 7 (VIIA,VIIB): the manganese family
      Group 8 (VIII, VIIIB): the iron family
      Group 9 (VIII, VIIIB): the cobalt family
      Group 10 (VIII, VIIIB): the nickel family
      Group 11 (IB,IB): the coinage metals (not an IUPAC-recommended name) or copper family
      Group 12 (IIB,IIB): the zinc family
      Group 13 (IIIB,IIIA): the boron family
      Group 14 (IVB,IVA): the carbon family
      Group 15 (VB,VA): the pnictogens or nitrogen family
      Group 16 (VIB,VIA): the chalcogens or oxygen family
      Group 17 (VIIB,VIIA): the halogens or fluorine family
      Group 18 (Group 0, VIIIA): the helium family/neon family; for the first six periods, these are the noble gases
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