1. What is the name given to the most commonly used classification of the elements?

2. Which metallic element is an important constituent of haemoglobin?

3. Which element has the chemical symbol P?

4. Lack of iron in a diet can lead to which disease?

5. What is the chemical symbol of the element of Gold?

6. Which element causes the paralysing affliction known to sea divers as ?the bends??

7. Which is the commonest element in the Earth?s crust?

8. Which is the most reactive of the halogen elements Flourine, Chlorine, Bromine, Iodine or Astatine?

9. Which metallic elemnt is mixed with tin to form the alloy Bronze?

10. Which metal is the best conductor of electricity?  

ANSWERS

1. The Periodic Table

2. Iron

3. Phosphorous

4. Anaemia

5. Au

6. Nitrogen

7. Oxygen

8. Fluorine

9. Copper

10. Silver

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