Metals and non metals Worksheet-1

Metals and non metals Worksheet-1

 

Fill in the blanks:

  1. Metal form ______ ions so they are known as _______ Elements.

  2. ______ is the most abundant metal in the earth crust.

  3. The second most abundant metal in the earth crust is ______.

  4. Metals _______ heat and electricity.

  5. Non-metals ________ heat and electricity.

  6. Non-metals form ______ ions by ______ electrons.

  7. ______ is the most abundant non-metal in the earth’s crust.

  8. All the non-metals are soft except ______.

  9. Non-metals do not conduct electricity except _______ .

  10. _______ is the only non metal which forms electropositive ion.

  11. Malleability and ductility are the important characteristics of _______ .

  12. The cooking utensils or water boilers are made up of ____ .

  13. Metals lose their shine due to the formation of layer of ________ on their surface.

  14. Metals have high densities but ______ and _______ have low densities .

  15. Non-metals have _____ surface. (Lustrous or dull)

  16. A metal which can be cut with knife is__________.

  17. Sodium and potassium are stored in _______ .

  18. Magnesium carbonate turns litmus solution _______.

  19. Zinc oxide reacts with sodium hydroxide forming _______.

  20. Iron is _______ reactive than zinc.

 

Answer key:

  1. Positive, Electropositive.

  2. Aluminium.

  3. Iron

  4. Conduct

  5. do not conduct

  6. Negative, gaining

  7. Oxygen

  8. Diamond

  9. Graphite

  10. Hydrogen

  11. Metals

  12. Copper/Aluminium.

  13. Oxide/Carbonate/Sulphide

  14. Sodium, Potassium/ Potassium, Sodium.

  15. Dull

  16. Sodium/potassium

  17. Kerosene.

  18. Blue

  19. Sodium Zincate /water

  20. Less