An exception to the octet rule is helium, whose 1 s 2 electron configuration gives it a full n = 1 shell, and hydrogen, which tends to gain or share its one electron to achieve the electron configuration of helium. Remarkably, though, Lewis’s insight was made nearly a decade before Rutherford proposed the nuclear model of the atom. We now know from quantum mechanics that the number eight corresponds to one ns and three np valence orbitals, which together can accommodate a total of eight electrons. explains the stoichiometry of most compounds in the s and p blocks of the periodic table. This so-called octet rule The tendency for atoms to lose, gain, or share electrons to reach a total of eight valence electrons. All rights reserved.Lewis’s major contribution to bonding theory was to recognize that atoms tend to lose, gain, or share electrons to reach a total of eight valence electrons, called an octet. Copyright © 2023 Pearson Education, Inc.Make grading parameter selections from the left toolbar, as applicable.The Correct Expression and Correct Answer fields below the canvas update as you make changes to the drawing. Make any edits to the copied correct answer on the canvas using the Lewis drawing controls.The Lewis structure from the other item appears on the drawing canvas and its corresponding answer string appears in the Correct Answer field is filled in. Select any content in the Correct Expression field (to overwrite it) and paste in the copied string from the other item using the keyboard command Ctrl + V (Windows) or Command-V (Mac OS).In your other open Part question, select next to Correct Answer to open the drawing tool and default parameters for the correct answer. Select Save to copy the information to your clipboard.Select Copy for the Correct Expression field (below the drawing canvas).Select next to Correct Answer to open the drawing tool and parameters for the correct answer.Go to the Answer box for the Part question that you want to copy.Select Copy and Edit Item from the top right menu to open the item in the Simple Editor.Tip: Ignore any items that have different toolbars or a canvas that says Marvin JS or ChemAxon. Open an item, confirm that it has the Lewis drawing toolbars, and select Solution View (top right) to see its Lewis drawing answer. Select the Answer Type filter and Chemistry Drawing. To search for Lewis structure questions.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |