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Two elements that form compounds that can be exceptions to the octet rule?
Boron and fluorine in the trivalent boron compound BF3 have only 6 electrons in the valence shell.Oxygen and nitrogen in nitric oxide, NO, contain one or more atoms which have an odd number (one UNpaired '.' ) of electrons. Lewis dot structure |N.=O
What are two atoms that comply with the octet rule?
Any atoms in groups 1-3 will bond ionically by giving up its outer shell electrons and becoming a cation. Atoms in groups 15-17 will receive these electrons and become anions. Noble gasses already have a complete outer shell, and semi-conductors/metalloids are usually reluctant to become ions.
Does PO4 negative three charge 3 obey the octet rule?
The oxygen atoms in the ion do obey the octet rule. The phosphorus atom has more than eight electrons in its valence shell. It is because of the existence of vacant 3d orbitals.
Does AlCl3 follow octet rule?
No, AlCl3 does not follow the octet rule. Aluminum typically forms compounds where it only has 6 electrons in its outer shell, such as in AlCl3 where it forms 3 bonds with chlorine atoms.
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.
Do you always follow the octet rule when drawing a Lewis structure?
No, the octet rule is a guideline, but there are exceptions for certain molecules and ions where atoms may have more or fewer than eight electrons in their valence shell. These exceptions typically involve elements from period 3 and below and can include expanded octets, odd-electron species, and species with incomplete octets.
Two elements that form compounds that can be exceptions to the octet rule?
Boron and fluorine in the trivalent boron compound BF3 have only 6 electrons in the valence shell.Oxygen and nitrogen in nitric oxide, NO, contain one or more atoms which have an odd number (one UNpaired '.' ) of electrons. Lewis dot structure |N.=O
What atoms dont always obey the octet rule?
Atoms in the third period or beyond (period 3 and below) can exceed the octet rule due to the availability of d orbitals for expanded valence shells. Examples include sulfur, phosphorus, chlorine, and others in the third row and beyond in the periodic table. Additionally, atoms with an odd number of valence electrons, such as nitrogen and radicals, may also not follow the octet rule.
What are two atoms that comply with the octet rule?
Any atoms in groups 1-3 will bond ionically by giving up its outer shell electrons and becoming a cation. Atoms in groups 15-17 will receive these electrons and become anions. Noble gasses already have a complete outer shell, and semi-conductors/metalloids are usually reluctant to become ions.
Does PO4 negative three charge 3 obey the octet rule?
The oxygen atoms in the ion do obey the octet rule. The phosphorus atom has more than eight electrons in its valence shell. It is because of the existence of vacant 3d orbitals.
Does AlCl3 follow octet rule?
No, AlCl3 does not follow the octet rule. Aluminum typically forms compounds where it only has 6 electrons in its outer shell, such as in AlCl3 where it forms 3 bonds with chlorine atoms.
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.
What is the octet rulewhich element is the exception?
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 Rule states that the first ring on an atom can hold 2 electrons and all others can hold 8?
Well I tink you mean the duet rule appling to first period and octet rule. The octet rule relates to the stable configuration that atoms can achive by sharing electrons, and is the outer shell of the noble gases. HOWEVER for period 3 and above atoms can hold more than 8 electrons in their outermost shells.
Does PCl2F3 follow the octet rule?
yes PCl3 obey octet rule there are 5 electrons in the valence shell of phosphorous it need 3 electron to complete its octet so it form bond with 3 chlorine after bond formation there are 8 electron in its octet it obey octet rule
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).
Why does the octet rule not always refer to a stable arrangement of 8 valence electrons?
The octet rule does not always refer to a stable arrangement of 8 valence electrons because some atoms can accommodate more than 8 electrons in their valence shell (expanded octet), such as elements in Period 3 and beyond in the periodic table. Additionally, some molecules, like radicals or species with an odd number of electrons, may not satisfy the octet rule but can still be stable due to resonance or other factors.
