CH-1187
Ionic bonding
Chemistry · Secondary 4 · Medium · Ionic bonding
Which statement explains why sodium bromide, NaBr, has a lower melting point than magnesium oxide, MgO?
- NaBr is covalent but MgO is ionic.
- Sodium is more reactive than magnesium.
- The attraction between Na⁺ and Br⁻ is weaker than that between Mg²⁺ and O²⁻.
- The melting point of sodium is lower than that of magnesium.
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