WebExpanded octet (hypervalent): A valence shell electron count that exceeds eight electrons. In methane (CH4), carbon has a full octet (eight valence electrons). In phosphate ion (PO43–), each oxygen has a full octet (eight valence electrons), whereas phosphorus has an expanded octet (ten valence electrons). WebD.(2 points) Whi ch of the following elements can form compounds with an expanded octet? a. Se b. C с. F d. None of the above T (2 points) Which of the following molecules obey the octet rule: a. ВНз b. XeF4 1A с. ВеClz d. XeO3 4 points) Rank the following bonds between atoms from least pol ar to most polar: C-H; S-Cl; C- 0; Br - Br
Exceptions to the Octet Rule Boundless Chemistry
WebStudy with Quizlet and memorize flashcards containing terms like The atoms that can expand their octets are, I, Br and more. Study with Quizlet and memorize flashcards … WebWhile molecules exist that contain atoms with fewer than eight valence electrons, these compounds are often reactive and can react to form species with eight valence electrons. For example, BF 3 will readily bind a fluoride anion to form the BF 4- anion, in which boron follows the octet rule. Terms hovah hall underwood children\\u0027s home
Which atom below can have an expanded octet? a. F b. Cl c. N d.
Web“EXCEPTIONS” TO THE OCTET RULE The maximum number of electrons possible in the valence shell of the second row elements is eight. However, the elements of the third row, such as phosphorus and sulfur, can form stable systems by sharing eight or more electrons. The presence of d-orbitals, which can accommodate up to ten electrons, makes this ... WebThe atoms that can expand their octets are ... I iodine Br Bromine Cl Chlorine P Phosphorous Atoms that CANT expand their octets ( so they don't violate the octet rule) ...... N nitrogen C carbon F Florine O oxygen WebMar 29, 2015 · What is the highest possible expanded octet? Often called "hypervalent", chemicals like phosphorous pentachloride and sulfur hexafluoride are possible due to the fact that their central atoms form covalent bonds with more than four other atoms, giving rise to uncommon arrangements. In the case of P C l X 5, the phosphorous atom forms 5 … hova flight school