9. Metals Have High Densities.
This means that metals are heavy substances. For example, the density of iron metal is 7.8 g/ which is quite high. There are, however, some exceptions. Sodium and potassium metals have low densities. They are very light metals.
Notes
Matter in Our Surroundings - Notes
1. The Case of a Liquid Solute Dissolved in a Liquid Solvent
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2. 11. Metals Usually Have a Silver or Grey Colour
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5. 3. Non-Metals are Bad Conductors of Heat and Electricity.
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9. To Study the Properties of a Colloid
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12. 7. Non-Metals may be Solid, Liquid or Gases at the Room Temperature.
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14. Separation Of Mixture Of a Solid And a Liquids
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16. 1. Separation by a Suitable Solvent
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18. 6. Metals are Usually Strong. They Have High Tensile Strength.
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19. To Separate a Mixture of Alcohol and Water
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21. 6. Non-Metals are Not Strong. They Have Low Tensile Strength.
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22. To Study the Properties of a Compound of Iron and Sulphur
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25. To Study the Properties of a Solution
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28. Separation of Mixture Of Two Solids
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29. 3. Metals are Good Conductors of Heat and Electricity.
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30. 11. Non-Metals Have Many Different Colours.
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32. Chemical Formula for daily use material
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34. To Separate the Salt-Water Mixture (or Salt-Solution)
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44. 7. Metals are Solids at the Room Temperature
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46. 4. Metals are Lustrous (or Shiny), and can be Polished.
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