In this video we'll write the electron configuration for chromium and then also the cr2 plus and cr3 plus ions, so chromium is important it's an exception to the rules that we follow to write electron configurations, so it's really one that you should know let's start by writing the electron configuration from chromium on the periodic table chromium has an atomic number of 24 that means it has 24 protons since it's neutral it'll have 24 electrons to write the electron configuration for chromium we use this periodic table here broken up into these orbital blocks you can also use this chart here there's a link in the description on how to do that this is probably better it helps explain how the periodic table is organized in relationship to these configurations so let's start with one s and s can hold up to two one s one s two then we go to the two s two next is 2p p can hold up to 6. So we put our 6 there 3s2 3p6 then we come to 4s2 and right now we've used a total of 20 electrons we have 24. So the next up is the 3d and d can hold up to 10, but we already have 20.
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Form CR-3 is a Texas Peace Officer's Crash Report, which is a standard form used to record and report motor vehicle accidents involving a peace officer, whether on duty or not, as specified by the Texas Transportation Code. The form is completed by the investigating officer at the scene of the crash or at the earliest time afterwards. This form is required for any motor vehicle crash that results in injury, death, or property damage amounting to $1,000 or more. It is needed by law enforcement officers, including state and local police departments, who respond to and investigate motor vehicle accidents in Texas. The purpose of Form CR-3 is to collect relevant information about the accident, vehicles involved, drivers, passengers, witnesses, and other pertinent details to create an accurate record of the crash. This information is crucial for statistical analysis, identifying trends, and improving safety on the roads.
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