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प्रश्न
What are (i) metals (ii) non-metals, and (iii) metalloids ? Give two examples each of metals, non-metals and metalloids.
उत्तर
- Metals: Metals are elements that are malleable, ductile and conduct electricity.
Examples: Aluminum and zinc - Non-metals: Non-metals are elements that are neither malleable nor ductile, and they do not conduct electricity. Most non-metals are brittle in nature.
Examples: Phosphorus, hydrogen - Metalloids: Metalloids are elements that show properties of both metals and non metals.
Examples: Germanium, silicon
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संबंधित प्रश्न
Match the following
| Column A | Column B | ||
| (a) | Molecules | (i) | Water boils |
| (b) | 100° C | (ii) | Evaporation |
| (c) | 0° C | (iii) | Changes from solid to gas |
| (d) | At all temperatures | (iv) | Matter |
| (e) | Camphor | (v) | Water freezes |
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Fill in the following blanks with suitable words :
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