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Why group 17 elements are called halogen...

Why group 17 elements are called halogens?

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Group VII A or Group 17 are called halogens. They are called so as the meaning of halogens (in Greek halo means sea and saltogens = producing) thus known as Sea salt formers.
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ICSE-THE PERIODIC TABLE -TOPIC 2 Studying Individual Groups (2 Marks Questions)
  1. Name or state the following with reference to the element of the first...

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  2. Complete the table :

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  3. Complete the table :

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  4. Name the method by which alkali metals can be extracted.

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  5. What is the colour of the flame of sodium and potassium ?

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  6. How many electrons do inert gases have in their valence shells ?

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  7. Name an element of group 18 which can form compounds.

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  8. Why group 17 elements are called halogens?

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  9. Give use of Helium gas

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  10. Give use of neon gas

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  11. The table given below shows the position of element U, V, X, Y and Z....

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  12. The table given below shows the position of element U, V, X, Y and Z....

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  13. What is the action of air on (i)Alkali metals (ii) Provide chemical ...

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  14. Below are some elements of modern periodic table ""4Be , ""9F, ""14S...

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  15. Below are some elements of modern periodic table ""4Be , ""9F, ""14S...

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  16. Below are some elements of modern periodic table ""4Be , ""9F, ""14S...

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  17. Below are some elements of modern periodic table ""4Be , ""9F, ""14S...

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  18. Write the name of two elements in group I.

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  19. Write the chemical reaction to show formation of hydrides and oxides w...

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  20. State two properties of group I elements.

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