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1. ### I am still not getting this.... Compound formulas need explaining?

...make it equal zero. In the first you have silicon, which is group IVA. That means its oxidation number will be +4. So...

3 Answers · Science & Mathematics · 04/02/2007

2. ### What is the difference between alkali metals and other metals...?

...post-transition metals occupy parts of groups IIIA, IVA, VA, and VIA, and includes such metals as aluminum, tin...

2 Answers · Science & Mathematics · 12/06/2011

3. ### What mineral group does lead belong to?

There may be many answers: 1. Heavy metals. 2. Group IVA. (periodic table) 3. Group 14 (periodic table)

5 Answers · Science & Mathematics · 08/10/2006

4. ### How to find valency in a periodic table?

...it. Elements of main groups 1A to 4A (IA to IVA in Roman numerals) have the same valency as their group ...

6 Answers · Science & Mathematics · 12/08/2011

5. ### Binary hydrides are classified into three types?

... Table, I REFER TO IIIA AND IVA GROUPs. CHEMICAL ELEMENTs BELONGING TO...

2 Answers · Science & Mathematics · 25/05/2009

6. ### Can someone help me with the periodic table?

... bonds = 2 Si - Silicon - Group IVA Charges -4, +2, +4 Covalent bonds = 4 Xe - ...

1 Answers · Science & Mathematics · 07/05/2009

7. ### In what respect does silicon resemble carbon?

...outermost orbit = 4 Both valency 4 Both are in the same group IVA in periodic table Both bonds easily with other elements ...

3 Answers · Science & Mathematics · 24/01/2007

8. ### How can the periodic table be used to infer the number of valence electrons in an atom?

... numeral at the top of the column. For example, carbon is in group IVA, so it has 4 valence electrons. The only place where this...

4 Answers · Science & Mathematics · 08/01/2010

9. ### what does the IA, IIA.....VIIB, VIII mean on the periodic table?

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

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

10. ### Chemistry Quiz?

...the charge on the monatomic ion = the Group no. For Groups IVA - VIIIA, the charge on the monatomic ion = Group no. - 8. 6. Take...

4 Answers · Science & Mathematics · 09/07/2008