1s22s1
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1s2, 2s1
2,1
The electron structure of a chemical element Indicate the location of electrons on shells.
Electronic Structure
Sulfur
A benzenoid is a compound with an electronic structure analogous to that of benzene.
Carbon owns 6e- and 6p+ so the electronic structure is K2 L4 .
Group 1 elements have one electron in their outermost energy level, giving them an electronic configuration of ns1, where n represents the energy level. For example, lithium has an electronic structure of 1s2 2s1, sodium has an electronic structure of 1s2 2s2 2p6 3s1, and potassium has an electronic structure of 1s2 2s2 2p6 3s2 3p6 4s1.
The element whose electronic structure is [Rn]7s2 = Raradium