What is difference between metal and non metal

Difference between metal and non metal.

1. Physical State

  • Metals: Mostly solid at room temperature (except mercury).
  • Non-metals: Can be solid, liquid (bromine), or gas (oxygen, nitrogen).

2. Appearance

  • Metals: Shiny (lustrous surface).
  • Non-metals: Dull (non-lustrous).

3. Electrical Conductivity

  • Metals: Good conductors of electricity.
  • Non-metals: Poor conductors (except graphite).

4. Thermal Conductivity

  • Metals: Good conductors of heat.
  • Non-metals: Poor conductors of heat.

5. Malleability

  • Metals: Malleable (can be beaten into thin sheets).
  • Non-metals: Brittle (break easily when hammered).

6. Ductility

  • Metals: Ductile (can be drawn into wires).
  • Non-metals: Non-ductile.

7. Density

  • Metals: Generally high density.
  • Non-metals: Generally low density.

8. Melting and Boiling Points

  • Metals: High melting and boiling points.
  • Non-metals: Low melting and boiling points (generally).

9. Chemical Behavior (Electron Transfer)

  • Metals: Lose electrons to form positive ions (cations).
  • Non-metals: Gain electrons to form negative ions (anions).

10. Nature of Oxides

  • Metals: Form basic oxides (some are amphoteric like aluminum oxide).
  • Non-metals: Form acidic or neutral oxides.

🧠 Summary (Technical Insight)

  • Metals: Electropositive, conductive, strong lattice structures.
  • Non-metals: Electronegative, insulating, weaker intermolecular forces (in many cases).

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