1.38 Activity. Know your ions.
Students should:
- 1.38 know the charges of common ions listed
You will have noted from the video that metal atoms tend to lose the electrons in their outermost electrons and form positive ions. The charge of the ion formed is equal to the number of electrons lost.
Non metal atoms gain electrons (when bonding with metals) and form negative ions. The non- metal atom gains enough electrons to complete its outermost shell
Use these ideas and the periodic table given to complete the following exercise.