Electrons are transferred from one atom to another (this is in an effort to either fill or empty the outer shell to become stable.) An atom has no charge because the electrons and protons have equal and opposite charges. But an ion will have a charge: an electron has a charge of -1, so loosing an electron looses one negative charge, making the ion +1. So gaining one electron will make an atom a -1, gaining two will make it -2.
The atoms the gain or loose electrons to each other will have opposite charges: for example if a gives away 1 atom and b gains it, a is +1 and b is -1. These charges mean that the ions are attracted to each other (ionic bond), so they form an ionic compound.
Why is b +2??
ReplyDeleteSorry my mistake, I meant -1 ;P
Deletethx loads for this resource, helping guide revision for upcoming mocks. But just thought I'd point out "loosing" and "looses" are spelt "lose" (1 'o').. thx again xD...
DeleteBecause banter
DeleteA gives away 1 electron not 1 atom ;)
ReplyDeleteYeah I was wondering about that!
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ReplyDeletea gives away 1 electron not atom. :)
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