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Inorganic Chemistry
2 Mar 2007 04:36:11 IST
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aman adakha
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2 Mar 2007 04:46:17 IST
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the factors on which electronegativity depends are
1size of the atom
2outer most configuration
3charge on the atom
plzz rate me
bye
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6 Mar 2007 18:33:24 IST
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Atoms with similar electronegativities will share an electron with each other and form a covalent bond. However, if the difference is too great, the electron will be completely transferred from the less electronegative atom to the more electronegative atom, forming an ionic bond. Furthermore, in a covalent bond if one atom pulls slightly harder than the other a polar covalent bond will form.
The reverse of electronegativity, the ability of an atom to lose electrons, is known as electropositivity.
Two scales of electronegativity are in common use: the Pauling scale and the Mulliken scale
on the Pauling scale the most electronegative chemical element (fluorine) is given an electronegativity value of 3.98 ; the least electronegative element (francium) has a value of 0.7, and the remaining elements have values in between. On the Pauling scale, hydrogen is arbitrarily assigned a value of 2.1 or 2.2.
On the Mulliken scale, numbers are obtained by averaging ionization potential and electron affinity. The Mulliken electronegativities are expressed directly in energy units, usually electron volts
on the Pauling scale the most electronegative chemical element (fluorine) is given an electronegativity value of 3.98 ; the least electronegative element (francium) has a value of 0.7, and the remaining elements have values in between. On the Pauling scale, hydrogen is arbitrarily assigned a value of 2.1 or 2.2.
On the Mulliken scale, numbers are obtained by averaging ionization potential and electron affinity. The Mulliken electronegativities are expressed directly in energy units, usually electron volts
6 Mar 2007 18:39:49 IST
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oooooooops forget to tell what u exactly asked 
The electronegativity of an element depends upon its valence state and thus is not an invariant atomic property. As an example, the electron-withdrawing ability of an spn hybrid orbital centered on carbon and directed toward hydrogen increases as the percentage of s character in the orbital increases in the series ethane < ethylene < acetylene. Thus, according to this concept of orbital electronegativity, each element exhibits a range of electronegativity values
7 Mar 2007 10:13:07 IST
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out of phosphorous and sulphur , sulphur has higher electronegativity, the value for former one is 2.1 and for later its 2.5
this applies to all grp 16 nd 15 elements, 16th ones are more electronegative than 15th due to the smaller atomic size and need of only two electrons to attain the nearest stable noble gas configuration
8 Mar 2007 08:41:47 IST
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eletronegativity means attrection of electron by bonded atoms in shared condition for example there is HCl molecule where EN of chlorine is more then hydrogen so negative charge on chlorine atom.this besically depends upon effective nuclear charge,size of atom,bond dissociation energy,redius of atom mainly.electronegativity fector also given by diggerent scientest in different form .for example mulliken gives formula EN=I.P +EA/2.highest en element is F while inert gases with zero enegativity.we follow mainly pouling scale for electronegativity order is F>O>N>Cl>Br>S>C>H>Cs.you also consult my material at goiit site.
8 Mar 2007 17:05:32 IST
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Hi magiclko,
Don't be upset about the boink you got for talking about the hybridization effect on electronegativity. Broadly, the electronegativity depends on the factors mentioned by Arun ji. Hybridization does affect electronegativity and is useful when determining the relative electronegativities of the same atom in different compounds. Here the question was, on what absolute factors an atom's electronegativity depends. There shouldn't be any confusions and try to re-check and be more precise in answering.
For this reason, I approved your boink.
Good luck.
AC
Don't be upset about the boink you got for talking about the hybridization effect on electronegativity. Broadly, the electronegativity depends on the factors mentioned by Arun ji. Hybridization does affect electronegativity and is useful when determining the relative electronegativities of the same atom in different compounds. Here the question was, on what absolute factors an atom's electronegativity depends. There shouldn't be any confusions and try to re-check and be more precise in answering.
For this reason, I approved your boink.
Good luck.
AC
8 Mar 2007 18:48:19 IST
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hello Sir,
first of all thanx for replying here, but watever i answered was what i all knw about electronegativity, nd hav studied till far.... and vish001 has given the boink cuz i hav given him once, (as he was bit irritating at asking questions....)
anyways, its fyn, was upset cuz i wanted a boinkless altitude.... perhaps i shudnt hav answered the question.... will take care of it in future...!!!
9 Mar 2007 10:36:52 IST
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hey first of all, i wasn't irrtating anyone like u , so don't be bothered about me ok !!! mind ur own businnes and if u don't like my questions please don't view them , and why the hell r u cared for me asking a irritating quuestion ??? u think u are some master expert or what ???
9 Mar 2007 10:38:30 IST
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u closely resemble what u said in ur profile - u are a huge mas of ignorant and self possessed pile !! and that's all what can be said about u !!! understood ?? and if u have the guts common explain to me in full detail the reason of that question in which u had given me a boink !!!
lets see ur expertise ??
lets see ur expertise ??
9 Mar 2007 13:58:57 IST
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Hey both of you chill...
It's just a boink... which just shows that we all are not perfect. That we are just humans ;) so take it in good spirit. And stop fighting like enemies man. All Indians are my brothers and sisters ;) so don't fight. It's irritating and makes things less fun :D
It's just a boink... which just shows that we all are not perfect. That we are just humans ;) so take it in good spirit. And stop fighting like enemies man. All Indians are my brothers and sisters ;) so don't fight. It's irritating and makes things less fun :D
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