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![[Post New]](/templates/default/images/icon_minipost_new.gif) 12 Feb 2008 20:28:45 IST
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dude look.........
IN H2O H SHOWS METTALIC BEHAVIOUR AS IT DISSOCIATES TO GIVE H+ JUST LIKE METAL CATIONS SO IN CASE OF HYDROGEN COMPOUNDS U ALLWAYS PLACE HYDROGEN FIRST AS PER CONVENTION THAT METAL FIRST NONMETAL SECOND NOW THIS APPLIES ONLY TO HYDROGEN COMPOUNDS LIKE H2O OR H2S .
IN CASE OF COVALENT BONDED MOLECULES COMAPRE THE METTALIC CHARECTER OF THE INDIVIDUAL UNIT ATOMS WHICH HAS HIGHER METTALIC CHARECTER COMES FIRST EG NF3 NO2
PCL4 OK.
THIS EXPLAINS A PART OF UR QUERRY NOW IN CASE OF NH3 H HERE DOES NOT BEHAVE AS A METAL WOULD IN PLACE OF IT
NOW SEE TAKE NF3 AND NH3 AND COMPARE THEIR BOND ENERGIES , THEN AS U KNOW NF3 IS COVALENT IF U FIND NH3 AND NF3 GIVING U COMPARABLE VALUES THEN SURELY NH3 IS COVALENT AND SO H THERE IS NOT LIKE A METTALIC HYDROGEN SO THERE COMES A DIFFERENCE IM NOT SURE ABT THIS NH3 INVESTIGATE IT I WILL LET U KNOW SOON
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