Metals are lustrous and opaque elements and are good conductors of electricity. These are higher density elements than any other elemental substance. The majority of the metals have the following properties:
- Malleable
- Ductile
- High density
- Good conductors
- Sonorous
- Hard
However, the metals are not brittle. Brittle is not a property of metals.
Hence, the correct answer is option a.
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