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. 3. Non-Metals are Bad Conductors of Heat and Electricity.
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3. 7. Metals are Solids at the Room Temperature
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4. The Case of a Liquid Solute Dissolved in a Liquid Solvent
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6. 11. Metals Usually Have a Silver or Grey Colour
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7. 7. Non-Metals may be Solid, Liquid or Gases at the Room Temperature.
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12. 6. Non-Metals are Not Strong. They Have Low Tensile Strength.
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13. Separation Of Mixture Of a Solid And a Liquids
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14. To Study the Properties of a Colloid
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19. To Study the Properties of a Compound of Iron and Sulphur
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20. 1. Separation by a Suitable Solvent
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21. 11. Non-Metals Have Many Different Colours.
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25. 3. Metals are Good Conductors of Heat and Electricity.
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26. 6. Metals are Usually Strong. They Have High Tensile Strength.
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30. 2. Separation by a Separating Funnel
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31. To Distinguish a Colloid from a Solution
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35. Experiment to Obtain Coloured Component (Dye) From Ink
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38. To Study the Properties of a Solution
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40. 1. Separation by Fractional Distillation
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41. 1. Non-Metals are Not Malleable. Non-Metals are Brittle.
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43. To Separate the Salt-Water Mixture (or Salt-Solution)
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47. Chemical Formula for daily use material
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50. To Study the Properties of a Suspension
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