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Exercise: Complete the following table by supplying the ion names.

Element symbol

Element name

Ion symbol

Ion name

Old system for metal ions

Li

lithium

Li 1+

lithium ion

F

fluorine

F1-

fluoride ion

Cr

chromium

Cr2+

chromium (II) ion

chromous ion

Cr

chromium

Cr3+

chromium (III) ion

chromic ion

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