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ok so you'll notice that lithium is on the second row of the Periodic Table, this means that its the next orbital

hydrogen = 1s1 orbital

helium = 2s1 orbital

lithium = 2s1, 1s2 orbital

removing the outter electron from lithium means that lithium has lost a minus charge and therefore must have a plus charge, this is called a cation.

removing the electron also means now that there are no electrons in the s2 level do lithium is left with a 2s1 orbital, this is a very stable configuration and lithium wont loose any more electrons

so your lithium ion will be nucleus with 3 protons 4 neutrons and 2 electrons with a plus charge to represent the loss of an electron

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16y ago

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