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By Oleksandr Koliakin

Lithium is the third element of the periodic table. It is the lightest metal, and actually floats in water. It is a member of the s-block and of the IA group. It is also an alkali metal and it commonly transforms into a +1 ion by losing its single, outer s-orbital electron, making lithium very electropositive.


  • SCIENCIA (book)

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