Allied solutions

Allied solutions

Grade 7

Atomic Structure | Exercise

Question 12

Q12) Give the symbols and valency of the following elements and radicals.

  1. Potassium
  2. Sodium
  3. Hydrogen
  4. Calcium
  5. Aluminium
  6. Magnesium
  7. Zinc
  8. Chlorine
  9. Sulphur
  10. Nitrogen
  11. Oxygen
  12. Ammonium
  13. Bicarbonate
  14. Nitrate
  15. Bisulphate
  16. Bisulphite
  17. Hydroxide
  18. Carbonate
  19. Sulphate
  20. Sulphite

Solution:

Elements/Radicals Symbol Valency
1. Potassium K 1
2. Sodium Na 1
3. Hydrogen H 1
4. Calcium Ca 2
5. Aluminium Al 3
6. Magnesium Mg 2
7. Zinc Zn 2
8. Chlorine Cl 1
9. Sulphur S 2
10. Nitrogen N 3
11. Oxygen O 2
12. Ammonium [[> widget id="1" <]] 1
13. Bicarbonate [[> widget id="2" <]] 1
14. Nitrate [[> widget id="3" <]] 1
15. Bisulphate [[> widget id="4" <]] 1
16. Bisulphite [[> widget id="5" <]] 1
17. hydroxide [[> widget id="6" <]] 1
18. carbonate [[> widget id="7" <]] 2
19. Sulphate [[> widget id="8" <]] 2
20. sulphite [[> widget id="9" <]] 2

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subject-cta

Question 12

Q12) Give the symbols and valency of the following elements and radicals.

  1. Potassium
  2. Sodium
  3. Hydrogen
  4. Calcium
  5. Aluminium
  6. Magnesium
  7. Zinc
  8. Chlorine
  9. Sulphur
  10. Nitrogen
  11. Oxygen
  12. Ammonium
  13. Bicarbonate
  14. Nitrate
  15. Bisulphate
  16. Bisulphite
  17. Hydroxide
  18. Carbonate
  19. Sulphate
  20. Sulphite

Solution:

Elements/Radicals Symbol Valency
1. Potassium K 1
2. Sodium Na 1
3. Hydrogen H 1
4. Calcium Ca 2
5. Aluminium Al 3
6. Magnesium Mg 2
7. Zinc Zn 2
8. Chlorine Cl 1
9. Sulphur S 2
10. Nitrogen N 3
11. Oxygen O 2
12. Ammonium [[> widget id="1" <]] 1
13. Bicarbonate [[> widget id="2" <]] 1
14. Nitrate [[> widget id="3" <]] 1
15. Bisulphate [[> widget id="4" <]] 1
16. Bisulphite [[> widget id="5" <]] 1
17. hydroxide [[> widget id="6" <]] 1
18. carbonate [[> widget id="7" <]] 2
19. Sulphate [[> widget id="8" <]] 2
20. sulphite [[> widget id="9" <]] 2

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