Period 3 element
third row of the periodic table
A period 3 element is an element found on the third period (row) of the periodic table. The row has eight elements sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon.
Period 3 elements have electrons in the first three electron shells. The first and second electron shells are always full. The third electron shell (valence electrons) fills when atomic number gets bigger. Two electrons join the 3s orbital, and six electrons join the 3p orbitals.
🔥 Top keywords: Main PageSpecial:SearchSupreme Court of the United StatesList of UEFA European Championship finalsWikipedia:AboutList of U.S. statesHelp:ContentsHelp:IntroductionKnights of the Round TableList of Disney moviesBlackSpecial:RecentChangesGodzilla X Kong: The New EmpireList of people who have walked on the MoonList of U.S. states and territories by time zoneUnited StatesThe Garfield MovieEducation24-hour clockEid al-AdhaGolden EdgeQueen (band)List of countries by continentsAviciiBig Mac IndexAdolf Hitler UunonaUmro Ayyar - A New BeginningMurder of Junko FurutaHelp:Authority controlCristiano RonaldoBismillahir Rahmanir Raheem19 Kids and CountingSOLID (object-oriented design)Jude BellinghamXXXTentacionLisa SparxxxPeriodic tableList of fruitsBTS