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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).
What else can I help you with?
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.
Why is NO2 an exception to the octet rule?
NO2 (nitrogen dioxide) is an exception to the octet rule because it has an odd number of electrons, resulting in an unpaired electron. In its Lewis structure, nitrogen forms two bonds with oxygen atoms, leaving one unpaired electron on the nitrogen. This leads to a total of 11 valence electrons, which cannot satisfy the octet rule for all atoms involved. As a result, NO2 is often classified as a free radical, exhibiting unique reactivity and properties.
Why is pcl5 an exception to the octet rule while pcl3 not?
PCl5 is an exception to the octet rule because phosphorus, the central atom, can expand its octet to accommodate more than eight electrons due to the availability of d-orbitals in its valence shell. In PCl5, phosphorus forms five bonds with chlorine atoms, allowing it to hold ten electrons. In contrast, PCl3 adheres to the octet rule, as phosphorus forms only three bonds with chlorine, resulting in a stable configuration with eight electrons around it. Thus, PCl5 exhibits expanded valence shell capabilities, while PCl3 does not.
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.
Is NH3 an exception to the octet rule?
NH3 is not an exception to the octet rule. Nitrogen (N) in NH3 has a total of 8 valence electrons (5 from nitrogen and 3 from hydrogen), fulfilling the octet rule. Nitrogen has 3 bonded pairs and 1 lone pair of electrons, following the octet rule.
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.
Can oxygen, a nonmetal element, have an expanded octet in its valence shell?
No, oxygen, as a nonmetal element, cannot have an expanded octet in its valence shell.
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".
Does the element sulfur in SO3 violate the octet rule?
Yes, the element sulfur in SO3 violates the octet rule because it has more than 8 electrons in its valence shell.
Is PF5 an exception to the Lewis octet rule?
Yes, PF5 is an exception to the Lewis octet rule. Phosphorus has 10 electrons around it in PF5, exceeding the octet rule. This is due to the availability of d-orbitals in the valence shell of phosphorus for accommodating extra electrons.
What is a representative element with eight electrons in its valence shells is called?
Octet
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).
Do Cu plus and Cu2 plus plus violate the octet rule?
Yes, both Cu+ and Cu2+ violate the octet rule. Copper (Cu) is an exception to the octet rule due to its electron configuration, which allows it to have a partially filled d orbital. This leads to Cu forming compounds where it does not achieve a full octet of electrons.
