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2:37 6:10 Electron Configuration - How To Identify The Element - YouTube YouTube Start of suggested clip End of suggested clip So here we have 2 plus 2 plus 6 plus 2 plus 3.. Two plus two is four two plus three is five fourMoreSo here we have 2 plus 2 plus 6 plus 2 plus 3.. Two plus two is four two plus three is five four plus six is ten ten plus five is fifteen. So what is the element that has an atomic number of fifteen.

ElementAtomic numberElectron configurationphosphorus151s22s22p63s23p3sulfur161s22s22p63s23p4chlorine171s22s22p63s23p5argon181s22s22p63s23p614 more rows

0:41 11:04 Electron Configuration of Ions - Mg2+, P3-, Fe2+, Fe3+ - YouTube YouTube Start of suggested clip End of suggested clip Number of mg. So we're going to start with this one. So first it's 1s2. And then we'll move on to 2sMoreNumber of mg. So we're going to start with this one. So first it's 1s2. And then we'll move on to 2s. So this is going to be 2s2. And then after 2s it's 2p then 3s p can hold up to 6. And then 3s2.

Hence, the given electronic configuration is of Neon.

Hence, the given electronic configuration is of Neon.

They are known as metals. The element with atomic number 118 has the electronic configuration, $[Rn]5{{f}^{14}}6{{d}^{10}}7{{s}^{2}}7{{p}^{6}}$ , since all of the shells are fully filled, this element will be placed with the noble gases in group 18.

Writing Electron Configurations. When writing an electron configuration, first write the energy level (the period), then the subshell to be filled and the superscript, which is the number of electrons in that subshell. The total number of electrons is the atomic number, Z.