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Some elements that are known to violate the octet rule are: Hydrogen, Helium and Lithium (two electrons) Aluminum and Boron (less than octet but will form an octet if possible), Period 3 elements with p orbitals (more than an octet using empty d orbitals), noble gas compounds (more than an octet), and elements like nitrogen with an odd number of electrons (form free radicals when octets are not possible).
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoElements that are exceptions to the Octet Rule are
Helium , Hydroen, Lithium that obey the Duet Rule.
Some reactive groups such as the Carbines.
Some compounds that are good Lewis Acids that react well with Lewis Bases.
Free Radicals such as Chlorine.
The Transition Metals that obey the Dodectet Rule
Wiki User
∙ 7y agoboron hes how Other notable exceptions are aluminum and boron, which can function well with six valence electrons. Consider BF3. Theboronshares its three electrons with three fluorine atoms. The fluorine atoms follow the octet rule, but boron has only six electrons.
Wiki User
∙ 9y agoHelium is excluded from the Octet Rule. Helium only has 2 electrons in its orbital shell. since only 2 ca fit, it has a full shell and does not react with other elements.
Wiki User
∙ 12y agoI do believe that it's hydrogen.
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Is water an exception to the octet rule?
It is one of many, many exceptions to the octet rule. Hydrogen does NOT require 8 electrons.
What is the element that doesn't have octet at highest level?
its hellium (He)
What element is a noble gas that does not have eight electrons in its outer shell?
Helium is the element in the noble geses family that does not have an octet. Helium is the element in the noble geses family that does not have an octet.
What is the maximum number of electrons that a representative element can possess?
8 so then it is an Octet.
What does the atom of an element belonging to the noble gas family have?
A complete octet of electrons (8) in the outer-most, or valence, shell.
Is NH3 an exception to the octet rule?
No, CH4 follows the octet rule.
What is the exception to the octet rule?
It is limit, stus
Is oxygen an exception to the octet rule?
Yes, oxygen is an exception to the octet rule. Molecular oxygen can have two unpaired electrons making it a biradical molecule.
Why is boron an exception to the octet rule?
Boron has two few valence electrons to ever obtain a full octet.
Is water an exception to the octet rule?
It is one of many, many exceptions to the octet rule. Hydrogen does NOT require 8 electrons.
Does BeF2 obey the octet rule?
No it is not fully obeying the octet rule. Boron has only 6 electrons (3 own + 3 from each F atom), lacking two for the octet. Fluorine is 3x satisfied, each with 8 electrons (each has 7 own plus 1 from boron).
What is the element that doesn't have octet at highest level?
its hellium (He)
If an element has an octet of electrons in its highest energy level there are how many electrons in this level?
8: that's the meaning of "octet".
What element is a noble gas that does not have eight electrons in its outer shell?
Helium is the element in the noble geses family that does not have an octet. Helium is the element in the noble geses family that does not have an octet.
What is a representative element with eight electrons in its valence shells is called?
Octet
What is the maximum number of electrons that a representative element can possess?
8 so then it is an Octet.
What was your clue for knowing the number of lines in an octet?
The clue for knowing the number of lines in an octet is that in a Lewis structure a line represents two electrons. This means that an element with four lines attached to other elements has an octet.
