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Subject: chem==>NO2...


Author:
wu
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Date Posted: 12:21:11 04/06/04 Tue

你又歸隱去了...
我想話呢...

有NO2,NO2-,NO2+

only NO2+係linear(N with 1 double bond and dative bond losing 1e-)

NO2 and NO2- 都係trigonal planar
NO2 has 1 double bond and 1 dative bond with 1 odd number of electron IN THE LONE PAIR

* _
O=N->O
+

N is positive in the centre
O is negative

NO2- has 1 double bond and dative bond but with an ADDED e-
IN THE LONE PAIR

*# _
(O=N->O)

the whole molecule is negative

#:added electron



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仲有既係...
我想問你...
咁你果條pastpaper係邊年...


hope u tell me....

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