Chemistry topic two - ions




-An ion is an atom or group of atoms with a positive or negative charge.

-It's between a metal and a non metal

-Ions form when atoms lose or gain electrons to obtain a full outer shell:

                                           ~ metal atoms lose electrons to form positively charged ions

                                           ~ non-metal atoms gain electrons to form negatively charged ions

-These oppositely charged ions are strongly attracted to one another by electrostatic forces, called an ionic bond 

Forming ionic bonds 

-Positive and negative ions form when a metal reacts with a non-metal, by transferring electrons

-The oppositely charged ions are strongly


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