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What are the elements that belonged to 1...

What are the elements that belonged to 18th (or) '0' group ? (a) Helium (b) Neon ( c ) Fluorine (d) Xenon

A

a,b

B

a,b,c

C

a,b,d

D

c

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BEYOND PUBLICATION-CLASSIFICATION OF ELEMENTS THE PERIODIC TABLE-EXERCISE
  1. Which of the following species does have electrons equal to 18 ? (a) K...

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  2. Pick out the correct statements about chlorine atom. (a) Chlroine is ...

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  3. What are the elements that belonged to 18th (or) '0' group ? (a) Heliu...

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  4. Electronic configuration from ns^2 np^1 to np^2 np^6 are called

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  5. 1 pm = …………..

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  6. block elements are called as lanthanides and actinides in modern perio...

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  7. "The law states hat the physical and chemical properties of the ...

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  8. VI A group elements are called chalcogens. This is because

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  9. The general electronic configuration of d-block elements is

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  10. The size of anion is more than neutral atom. This is due to

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  11. Which of the following is correct with respect to size ?

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  12. M^+ + IE2 =M^(+2)(g)+e^- This represents

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  13. In a period, I.E increases due to

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  14. The I.E of 'N' is more than oxygen even though the size of 'O' is less...

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  15. The formula of chloride formed by eka silicon

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  16. Which of the following atomic numbers belongs to same period ?

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  17. The size of Na^+ is less than 'Na' . This is due to

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  18. Which pair of elements are lanthanides ?

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  19. Arrange the following elements in the order of their decreasing metall...

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  20. Arrange the following elements in the order of their increasing non-me...

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