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I think two elements that does not follow the octet rule are boron and beryllium. These elements always have one electron pair less than normal configuration. Boron is an important element for our body.
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∙ 13y ago
Wiki User
∙ 12y agoHydrogen and helium follow a modified version of the octet rule: they only have room for two electrons in their outermost shell. Helium, as a noble gas, has a full outer shell and is therefore nonreactive.
The heavier noble gases (starting with argon) can be induced to create chemical compounds with the most reactive nonmetals, fluorine and oxygen; such compounds violate the octet rule, as noble gases (other than helium) start with a full outer shell of eight electrons.
There are numerous other examples as well; please reference the attached link.
Wiki User
∙ 11y agoYes, there are many molecules, such as sulfur hexafluoride, which do not follow the octet rule.
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∙ 12y agoMost molecules do not violate the octet rule.
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∙ 11y agoall molecules except the group 2 and group 3 molecules of the elements
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∙ 11y agothings like Sodium (Na+) and Hydrogen... elements that do not have 8 electrons to make an "octet"
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∙ 13y agoBF3 and other similar Lewis Acids
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∙ 13y agoA Lewis acid such as BF3
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Which doesn't violate the octet rule sf4 krf2 cf4 xef4 icl4-?
CF4 Doesn't violate the Octet Rule, the rest do.
No2 violate octet rule?
Yes
Do Cu plus and Cu2 plus plus violate the octet rule?
The octet rule does not apply to transition metals.
Does BeH2 violate the octet rule?
The octet rule only applies to elements that are heavy enough to have reached the second shell of electrons. In the first shell, the octet rule does not apply because the first shell is completed with only two electrons, not eight. So no, the octet rule does not apply to beryllium hydride.
What is the Lewis formula for the octet rule for the ions ClO2?
There is ClO2 and ClO2^-. For the chlorite anion (ClO2^-) the Cl will have 10 electrons and will violate the octet rule. For ClO2, all elements will have 8 electrons.
What molecules does not violate the octet rule no bcl3 bef2 sef6 f2ccf2?
F2ccf2
Which three elements violate the octet rule?
The octet rule cannot be satisfied in molecules whose total number of valence electrons is an odd number.There are also molecules in which an atom has fewer, or more, than an octet of valence electrons.
Which doesn't violate the octet rule sf4 krf2 cf4 xef4 icl4-?
CF4 Doesn't violate the Octet Rule, the rest do.
No2 violate octet rule?
Yes
Do Cu plus and Cu2 plus plus violate the octet rule?
The octet rule does not apply to transition metals.
Does BeH2 violate the octet rule?
The octet rule only applies to elements that are heavy enough to have reached the second shell of electrons. In the first shell, the octet rule does not apply because the first shell is completed with only two electrons, not eight. So no, the octet rule does not apply to beryllium hydride.
What is the Lewis formula for the octet rule for the ions ClO2?
There is ClO2 and ClO2^-. For the chlorite anion (ClO2^-) the Cl will have 10 electrons and will violate the octet rule. For ClO2, all elements will have 8 electrons.
What is the statement that when atoms combine to form molecules they general lose or gain or sharevalence electrons until they attain or share eight?
The octet rule. I have the same worksheet.
How does an atom of boron become stable?
In general, boron will form 3 covalent bonds, using each of its 3 valence shell electrons (sharing them). This will of course violate the octet rule, but obeys the sextet rule, and this is what makes boron stable. It (along with aluminum, eg.) do not obey the octet rule.
How does oxygen not follow the octet rule?
It does follow the octet rule!
Give example of octet rule?
Az important rule: any octet has to have eight parts, otherwise it is not an octet.
Is NH3 an exception to the octet rule?
No, CH4 follows the octet rule.
