https://www.khanacademy.org/science/grade-9-chemistry-snc-aligned/x22d5b83c2ea2dc38:group-properties-and-elements/x22d5b83c2ea2dc38:properties-of-transition-elements/v/trends-in-the-general-properties-pk 2025-12-18T16:50:45.096818701Z Trends in the general properties Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Trends in the general properties Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/vFX1xdhauS4.mp4/vFX1xdhauS4.mp4 444 Introduction to transition elements and d-orbitals https://www.khanacademy.org/science/chemistry/atomic-structure-and-properties/copy-of-periodic-table-of-elements/v/periodic-table-transition-metals 2021-07-14T12:44:36Z The periodic table - transition metals The definition of a transition metal, and how to write the electron configuration including examples for Fe and Zn. Jay video https://cdn.kastatic.org/googleusercontent/xm9gwHAPQKrbCcy3jRenn5uPR8jdgHUNJhSTLEi4nBNq_JocvH3_EGdwTOpOUpeAaMAJLW--hmmNTlzz2oN3XEtt The periodic table - transition metals The definition of a transition metal, and how to write the electron configuration including examples for Fe and Zn. https://cdn.kastatic.org/ka-youtube-converted/kCM2mSb4qIU.mp4/kCM2mSb4qIU.mp4 334 Introduction to transition elements and d-orbitals https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:atomic-models-and-periodicity/x2613d8165d88df5e:the-quantum-model/v/orbitals 2020-09-23T19:58:37Z Shells, subshells, and orbitals The electrons in an atom are arranged in shells that surround the nucleus, with each successive shell being farther from the nucleus. Electron shells consist of one or more subshells, and subshells consist of one or more atomic orbitals. Electrons in the same subshell have the same energy, while electrons in different shells or subshells have different energies. Sal Khan video https://cdn.kastatic.org/googleusercontent/l1scWG8pLvaiTU-leH4UZrqPtmfcaRMt9LJcg7VC3TPuoLK6b3yfeNk37h9Lzj4cjMSkWIrIxwRMnrxwDuHogTUb Shells, subshells, and orbitals The electrons in an atom are arranged in shells that surround the nucleus, with each successive shell being farther from the nucleus. Electron shells consist of one or more subshells, and subshells consist of one or more atomic orbitals. Electrons in the same subshell have the same energy, while electrons in different shells or subshells have different energies. https://cdn.kastatic.org/ka-youtube-converted/26PF9Ctch9Y.mp4/26PF9Ctch9Y.mp4 581 Introduction to transition elements and d-orbitals https://www.khanacademy.org/science/grade-12-chemistry-snc-aligned/x7a43e770fc9e15cf:transition-metals/x7a43e770fc9e15cf:introduction-to-transition-elements-and-d-orbitals/v/electron-configurations-of-the-3d-transition-metals 2025-06-10T19:22:53.658409675Z Electron configurations of the 3d transition metals Let's understand Electron config of 3d transition metals Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Electron configurations of the 3d transition metals Let's understand Electron config of 3d transition metals https://cdn.kastatic.org/ka-youtube-converted/F3w3FXwaqp4.mp4/F3w3FXwaqp4.mp4 695 Introduction to transition elements and d-orbitals https://www.khanacademy.org/science/chemistry/atomic-structure-and-properties/orbitals-and-electrons/v/quantum-numbers-for-the-first-four-shells 2021-01-04T18:35:18Z Quantum numbers for the first four shells Calculates number of orbitals and number of electrons in different kinds of orbitals for n = 1 to 4. Explains that only two electrons are allowed per orbital, and gives shortcuts for calculating number of orbitals and total number of electrons for a given n. Jay video https://cdn.kastatic.org/googleusercontent/xBX5TKTil3UEDvbjo9zhR6nY3nKhIvzb9cHbSWyU2js9B-LTmU4DLfxs4BovVvpJpzelIoOrPGzayhIrNDLPrBV- Quantum numbers for the first four shells Calculates number of orbitals and number of electrons in different kinds of orbitals for n = 1 to 4. Explains that only two electrons are allowed per orbital, and gives shortcuts for calculating number of orbitals and total number of electrons for a given n. https://cdn.kastatic.org/ka-youtube-converted/qLU0X154wlE.mp4/qLU0X154wlE.mp4 757 Introduction to transition elements and d-orbitals https://www.khanacademy.org/science/grade-9-chemistry-snc-aligned/x22d5b83c2ea2dc38:group-properties-and-elements/x22d5b83c2ea2dc38:properties-of-transition-elements/v/oxidation-states-of-transition-elements-pk 2025-12-18T16:50:45.096818701Z Oxidation states of transition elements Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Oxidation states of transition elements Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/VWHPoHByWc4.mp4/VWHPoHByWc4.mp4 428 Introduction to transition elements and d-orbitals https://www.khanacademy.org/science/chemistry/acids-and-bases-topic/copy-of-solubility-equilibria-mcat/v/solubility-and-complex-ion-formation 2021-01-04T18:35:19Z Solubility and complex ion formation Calculating the solubility of silver chloride in pure water and 3.0 M ammonia. Calculating new equilibrium constant to account for formation of complex ion.  Jay video https://cdn.kastatic.org/googleusercontent/Wq1hP0vSZ8bDkPR2ZZGRLWZSjyOMe4V1WP4BCRnfEQd9snk_NDevISqVGtXe7g14MrLsE63P83WqCTNPUeLXxx0 Solubility and complex ion formation Calculating the solubility of silver chloride in pure water and 3.0 M ammonia. Calculating new equilibrium constant to account for formation of complex ion.  https://cdn.kastatic.org/ka-youtube-converted/r7gTH_5XfOI.mp4/r7gTH_5XfOI.mp4 890 Introduction to transition elements and d-orbitals https://www.khanacademy.org/science/strengthened-shs-chemistry-1/x174677b2bfa4bea2:1st-quarter/x174677b2bfa4bea2:quantum-mechanical-model/a/the-quantum-mechanical-model-of-the-atom 2025-02-27T08:03:41.344353732Z The quantum mechanical model of the atom Introduction to the quantum mechanical model of the atom: Thinking about electrons as probabilistic matter waves using the de Broglie wavelength, the Schrödinger equation, and the Heisenberg uncertainty principle. Electron spin and the Stern-Gerlach experiment.  article https://www.khanacademy.org/science/grade-11-chemistry-snc-aligned/x203b0fc81a964b2d:reaction-kinetics/x203b0fc81a964b2d:using-catalysts/a/types-of-catalysts 2021-04-29T08:01:58Z Types of catalysts What is a catalyst? Includes examples of enzymes, acid-base catalysis, and heterogeneous (or surface) catalysis.  article https://www.khanacademy.org/science/grade-9-chemistry-snc-aligned/x22d5b83c2ea2dc38:group-properties-and-elements/x22d5b83c2ea2dc38:properties-of-transition-elements/e/reactivity-of-transition-elements 2025-01-16T17:26:38.722179937Z Oxidation states of transition metals Let's test our understanding of the oxidation states of transition metals and the various factors that contribute to it by solving these questions. Revathi exercise https://www.khanacademy.org/science/inorganic-chemistry-essentials-class-12/x394d65b18d218904:the-d-block-elements/x394d65b18d218904:properties-of-transition-metals/e/properties-of-transition-metals 2025-01-16T17:26:38.722179937Z Other properties of transition metals Transition metals exhibit a number of interesting properties like magnetic and catalytic properties, ability to form coloured ions, alloys and interstitial compounds. Let's take a recap of these properties and answer these questions. Revathi exercise