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Give scientific reasons : Atomic numb...

Give scientific reasons :
Atomic number is a more fundamental property of an element than its atomic mass.

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CHETANA PUBLICATION-Periodic Classifications of ELements-EXAMPLE
  1. Give scientific reasons : Elements belonging to the same group have...

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  2. Give scientific reasons : The third period contains only eight elem...

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  3. Give scientific reasons : Atomic number is a more fundamental prope...

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  4. Give scientific reasons : Alkali metals are placed in Group 1.

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  5. Give scientific reasons : Inert gases exist in the form of free ato...

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  6. Give scientific reasons : Inert gases (zero group elements ) are ca...

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  7. Give scientific reasons : Fluroine is the most reactive in Group 17...

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  8. Write down the electronic configuration of the following elements from...

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  9. Write down the electronic configuration of the following elements from...

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  10. Write down the electronic configuration of the following elements from...

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  11. Write down the electronic configuration of the following elements from...

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  12. Write down the electronic configuration of the following elements from...

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  13. Write down the electronic configuration of the following elements from...

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  14. Write down the electronic configuration of the following elements from...

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  15. Write down the electronic configuration of the following elements from...

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  16. Which element is a metal with valency2?

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  17. Which element is non-metal with valency 3?

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  18. Write a common name for the family of elements C and F?

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  19. Chlorine has two isotopes, viz. Cl-35 and Cl-37 Their atomic masses ar...

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  20. A metal M forms an oxide having the formula M2O3. It belongs to 3rd pe...

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