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  1. ...covalent chemical bonds. covalent forms between non-metal atom though! like group IVA-VIIA

    1 Answers · Science & Mathematics · 15/05/2013

  2. Group 2: look at the huge jump in ionisation energies between the second and third values. That represents going into the next level of electrons.

    1 Answers · Science & Mathematics · 07/05/2013

  3. ... IIIa : Transition Metal Elements IVa : Transition Metal Elements ETC.... go to http...

    2 Answers · Science & Mathematics · 04/06/2013

  4. Other than 4 valence electrons, not a lot. Group IVA elements run the gamut from nonmetal to metalloid, to metal. Carbon...

    1 Answers · Science & Mathematics · 18/01/2013

  5. Silicon is a IVA group element in period two. It has a small atom and higher electronegativity...

    3 Answers · Science & Mathematics · 11/01/2013

  6. Germanium is in group IVA. The IV means that it has four valence electrons...

    2 Answers · Science & Mathematics · 19/11/2012

  7. ...of group IIIA elements increases the conductivity of group IVA semiconductors by increasing the number of holes...

    2 Answers · Science & Mathematics · 21/11/2013

  8. get this book - approach it with another text http://www.amazon.com/Chemistry-Concepts-Problems-Self-Teaching-Guides/dp/0471121207

    3 Answers · Science & Mathematics · 29/08/2012

  9. ...character. The best examples are groups 14 and 15 (IVA and VA). At the tops of the columns are ...

    4 Answers · Science & Mathematics · 14/01/2012

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