https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-bonding/x2613d8165d88df5e:ionic-bonds/v/valence-electrons-and-ionic-compounds 2022-09-07T08:21:01.673602243Z Valence electrons and ionic compounds When forming ions, elements typically gain or lose the minimum number of electrons necessary to achieve a full octet. For example, fluorine has seven valence electrons, so it is most likely to gain one electron to form an ion with a 1- charge. We can use this method to predict the charges of ions in ionic compounds. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/0fa65651-5c25-4356-ab62-0ddbdaf7cdb5_1280_720_base.png Valence electrons and ionic compounds When forming ions, elements typically gain or lose the minimum number of electrons necessary to achieve a full octet. For example, fluorine has seven valence electrons, so it is most likely to gain one electron to form an ion with a 1- charge. We can use this method to predict the charges of ions in ionic compounds. https://cdn.kastatic.org/ka-youtube-converted/XPnlIEk7XrU.mp4/XPnlIEk7XrU.mp4 475 Ionic bond https://www.khanacademy.org/science/bridge-course-class-11th-chemistry/x426c9d2c554669cb:basic-concepts-of-chemistry/x426c9d2c554669cb:ionic-compounds/e/predict-charges-on-monatomic-ions 2025-04-09T10:12:02.040424533Z Predict the charge on monatomic ions Predict the monatomic ion formed from different elements based on the position in the periodic table. Yuki exercise https://www.khanacademy.org/science/ap-biology/chemistry-of-life/introduction-to-biological-macromolecules/v/ionic-bonds 2023-03-31T23:16:47.953017837Z Ionic bonds Atoms interact with each other through the formation of chemical bonds. One type of chemical bond is an ionic bond. Ionic bonds result from the attraction between oppositely charged ions. For example, sodium cations (positively charged ions) and chlorine anions (negatively charged ions) are connected via ionic bonds in sodium chloride, or table salt. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/78c67bc9-cdff-44b8-b61d-e44a9f9f0e4d_1280_720_base.png Ionic bonds Atoms interact with each other through the formation of chemical bonds. One type of chemical bond is an ionic bond. Ionic bonds result from the attraction between oppositely charged ions. For example, sodium cations (positively charged ions) and chlorine anions (negatively charged ions) are connected via ionic bonds in sodium chloride, or table salt. https://cdn.kastatic.org/ka-youtube-converted/FaeAurHnQJs.mp4/FaeAurHnQJs.mp4 250 Ionic bond https://www.khanacademy.org/science/grade-9-chemistry-snc-aligned/x22d5b83c2ea2dc38:chemical-bonding/x22d5b83c2ea2dc38:electropositivity-of-metals-and-electronegativity-of-non-metals/v/ionic-bonds-reaction-of-metals-non-metals-ur 2025-08-08T00:24:37.843818748Z Ionic bonds: Reaction of metals & Non-metals Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Ionic bonds: Reaction of metals & Non-metals Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/gek4qmp--Ck.mp4/gek4qmp--Ck.mp4 589 Ionic bond https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-bonding/x2613d8165d88df5e:ionic-nomenclature/a/polyatomic-ions-article 2025-11-10T20:10:49.634366523Z Polyatomic ions Learn what polyatomic ions are and how to write them in chemical formulas. article https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-bonding/x2613d8165d88df5e:ionic-bonds/e/apply-ionic-bonds-and-compounds 2026-03-11T05:00:37.141016324Z Apply: ionic bonds and compounds Apply your knowledge of ionic bonds and compounds in this set of free practice questions. Emily Cizmas exercise https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-bonding/x2613d8165d88df5e:ionic-bonds/v/representing-ionic-solids-using-particulate-models 2023-12-18T19:15:22.874322042Z Representing ionic solids using particulate models The cations and anions in an ionic solid are arranged in a lattice structure that maximizes the attractive forces between opposite charges and minimizes the repulsive forces between like charges. The structure of an ionic solid can be represented using a particulate model. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/03b4c948-32ec-49cd-a6a7-d1450a7f6f20_1280_720_base.png Representing ionic solids using particulate models The cations and anions in an ionic solid are arranged in a lattice structure that maximizes the attractive forces between opposite charges and minimizes the repulsive forces between like charges. The structure of an ionic solid can be represented using a particulate model. https://cdn.kastatic.org/ka-youtube-converted/sAhRvgX4tQk.mp4/sAhRvgX4tQk.mp4 343 Ionic bond https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:molecular-and-ionic-compound-structure-and-properties/x2eef969c74e0d802:structure-of-ionic-solids/e/structure-of-ionic-solids 2023-08-07T17:25:22.494770007Z Structure of ionic solids Practice identifying and interpreting particulate models of ionic solids in this set of free questions designed for AP Chemistry students. Lauren Rosebrugh exercise