The nitrate ion ( NO 3 " ), for instance, must form a double bond between nitrogen and one of the oxygen's to satisfy the octet rule for nitrogen.
22.
The octet rule is a heuristic ( very simplified rule-of-thumb ) which helps get the right answer without having to go through the in-depth mathematics necessary to understand the full implications of quantum theory.
23.
When figuring out the most stable form of a molecule, does requirement for octet rule always trump everything else, no matter what kind of atoms are involved ? talk ) 03 : 07, 17 January 2008 ( UTC)
24.
In the methane diagram shown here, the carbon atom has a valence of four and is, therefore, surrounded by eight electrons ( the octet rule ), four from the carbon itself and four from the hydrogens bonded to it.
25.
For example, in PCl 5, if it is supposed that there are five true covalent bonds in which five distinct electron pairs are shared, then the phosphorus would be surrounded by 10 valence electrons in violation of the octet rule.
26.
The rules which govern stability of electron configuration are extremely complicated, so a lot of simple versions such as the " octet rule " exist; however these are at best " approximate " and talk ) 16 : 31, 2 January 2008 ( UTC)
27.
Still haven't figure out how PEP explains the octet rule . ( And no, it's not homework I don't have homework . )-- 71.162.233.206 03 : 18, 9 April 2007 ( UTC)
28.
To form five bonds, the one s, three p and one d orbitals combine to form five sp 3 d hybrid orbitals which each share an electron pair with a halogen atom, for a total of 10 shared electrons, two more than the octet rule predicts.
29.
In this model the availability of empty d orbitals is used to explain the fact that third-row atoms such as phosphorus and sulfur can form more than four covalent bonds, whereas second-row atoms such as nitrogen and oxygen are strictly limited by the octet rule.
30.
According to the octet rule, the atoms immediately before and after neon in the periodic table ( i . e . C, N, O, F, Na, Mg and Al ), tend to attain a similar configuration by gaining, losing, or sharing electrons.
