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""(11)Na :1s ^(2) 2s^(2) 2p ^(6) 3s^(...

`""_(11)Na :1s ^(2) 2s^(2) 2p ^(6) 3s^(1)`
this element belongs to which block ?

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""_(21 ) Sc : 1s^(2 ) 2s ^(2) 2p ^(6) 3s^(2)3p ^(6 ) 4s ^(2) 3d^(1) Scandium belongs to which block ?

A: 1S^(2) 2S^(2) B: 1s^(2) 2s^(2) 2p^(6) 3^(2) To which group element 'B ' belongs ?

Sc = 1s^2 2s^2 2p^6 3s^2 3p^6s 4s^2 3d^1 .this is belongs to

A: 1S^(2) 2S^(2) B: 1s^(2) 2s^(2) 2p^(6) 3^(2) To which period element 'A' Belngs ?

1s^(2) , 2 s^(2) , 2p_(x) ^(2) . Which rule is violated

The configuration 1s^(2)2s^(2)2p^(5)3s^(1) shows

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A: 1S^(2) 2S^(2) B: 1s^(2) 2s^(2) 2p^(6) 3^(2) what is the valency of 'B' ?

The configuration of 1s^(2)2s^(2)2p^(5)3s^(1) shows

VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS -THE PERIODIC TABLE -CREATIVE QUESTIONS FOR NEW MODEL EXAMINATION (SECTION -I)
  1. Match it {:("a)s-subshell","1)6 electrons "),("b) p-sunshell ","2) ...

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  2. How many blocks are there in modern peridic table ?

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  3. ""(11)Na :1s ^(2) 2s^(2) 2p ^(6) 3s^(1) this element belongs t...

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  4. ""(21 ) Sc : 1s^(2 ) 2s ^(2) 2p ^(6) 3s^(2)3p ^(6 ) 4s ^(2) 3d^(...

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  5. What is the general outersheell electronic configuration of alkal...

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  6. What is general outershell electronic configuration of Halogen ...

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  7. match the above

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  8. Which statement is wrong ?

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  9. How many elements are there in first period in the periodic tab...

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  10. which block elements are called Lanthanoids / actinoids ?

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  11. match it {:("a)",""(58)Ce-""(71)Lu,"i) Actinoids "),("b)",""(90) ...

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  12. Which block elements are called as transition metals ?

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  13. Which block elements are called the inner transition elements ?

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  14. Give two example to semi conductors?

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  15. Which block contains metals only ?

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  16. TO which group Lanthanoids and actinides belongs ?

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  17. Who did experiments to calculate the number of positive charges ...

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  18. A: Elements along a period possess different chemical properties...

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  19. Which property of an element is called as combining power of it...

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  20. In NaH , what is the valency of 'Na' ?

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