Is Na₂O brittle?
Yes, sodium oxide (Na₂O) is brittle because it is an ionic compound. In ionic compounds, the ions are arranged in a strong, rigid crystal lattice held together by electrostatic forces between oppositely charged ions (Na⁺ and O²⁻ in this case).
Why is Na₂O brittle?
- Rigid Ionic Lattice – The strong electrostatic forces hold the ions in a fixed structure, making it hard but brittle.
- Cleavage Under Stress – When force is applied, like charges (Na⁺-Na⁺ or O²⁻-O²⁻) may come close together, leading to repulsion and causing the crystal to shatter rather than bend.
- High Melting Point – Na₂O has a high melting point due to strong ionic bonds, which also contributes to its solid, brittle nature.
Comparison with Other Ionic Compounds
Like most ionic solids (e.g., NaCl, MgO), Na₂O does not exhibit malleability or ductility like metals. Instead, it breaks apart when subjected to stress.
Thus, sodium oxide (Na₂O) is brittle because of its ionic bonding and crystal structure.
Aditya Raj Anand Changed status to publish March 11, 2025
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