Practice question · Sort into groups
Sort each substance by its dominant bonding type.
Groups: Ionic · Covalent · Metallic
- Carbon dioxide
- Magnesium oxide
- Copper
- Sodium metal
- Diamond
- Sodium chloride
Hints
- Metal with nonmetal tends to transfer; nonmetal with nonmetal tends to share.
- A pure element that is a metal bonds metallically.
Show the answer
Ionic: Sodium chloride, Magnesium oxide
Covalent: Carbon dioxide, Diamond
Metallic: Copper, Sodium metal
Why
Metal-plus-nonmetal pairs (NaCl, MgO) transfer electrons; nonmetal-plus-nonmetal (CO2, diamond) share them; pure metals (Cu, Na) pool them into a delocalised sea.
Practise Chemical Bonds and Electronegativity
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