Aluminum forms an ion of +3 while the bromine atom form an ion of -1.
What is an ion?
An ion is an atom which has lost/gained one or more electrons. The ion will be positive if an electron is lost and will be negative when an electron is gained by the specie.
The ions formed by each of the species is;
- Al = +3
- I = -1
- Li = +1
- Ba= +2
- P = -3
- S = -2
- Br = -1
- Mg = +2
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