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when an element gains and electrons it becomes negativly charged. Well and example of a negative ion would be fluorine and chlorine they are represented as

F- Cl- the superscript negative symbol means that the number of electrons

and protons are not equal because the element has gained electrons to gain

a full valence shell (outer shelll) if they gain more then 1 electron you simply

put the number beside the negative symbol like 2 3

For the loss of electrons that means the symbol becomes positive

and it would be the the alkali metals like litium and magnesium

Li+ Mg+

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13y ago

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