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valence eltrons
ch 4
| Question | Answer |
|---|---|
| hydrogen | -1 |
| helium | 0 |
| lithium | -1 |
| beryllium | -2 |
| nitrogen | + 3 |
| oxygen | +2 |
| fluoride | +1 |
| neon | 0 |
| sodium | -1 |
| magnesium | -2 |
| aluminum | +5 |
| phosphorus | +3 |
| sulfur | +2 |
| chlorine | +1 |
| argon | 0 |