Common Ionic Charges of Elements
According to the data in the table, which element is most likely to form an anion with a -1 charge?
| Element | Atomic Number | Group | Common Ionic Charge |
|---|---|---|---|
| Na | 11 | 1 | +1 |
| Cl | 17 | 17 | -1 |
| O | 8 | 16 | -2 |
| Mg | 12 | 2 | +2 |
A
B
C
D
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