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Why do elements in the same group have s...

Why do elements in the same group have similar physical and chemical properties.

A

Both 'A' and 'R' are correct and 'R' is correct explanation of 'A'

B

Both 'A' and 'R' are correct but 'R' is not correct explanation of 'A'

C

A' is correct but 'R' is wrong

D

A' is wrong but 'R' is correct

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VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS-THE PERIODIC TABLES-EXERCISE
  1. (a) Lanthanoids and actinoids are belongs to 3rd group. b) Lanthanoids...

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  2. Assertion (A) : Lanthanides and Actinides are called as Inner  Transit...

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  3. Why do elements in the same group have similar physical and chemical p...

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  4. The pair of elements that have similar chemical properties are

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  5. Pavan (P) : The general electronic configuration of alkali metal famil...

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  6. Assertion (A): ‘H' & 'He' belongs to period - 1. Reason (R) : 'H & 'He...

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  7. Assertion (A): The first period in periodic table contain only two ele...

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  8. Suneetha (A) : Third period contain 18 elements, because it has 3 subs...

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  9. James (A) : The positive ions of an element has less in size than its ...

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  10. Balu (B) : Valence of an element with  respect to hydrogen is the numb...

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  11. Valeney of Ca is

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  12. Assertion (A) : Atomic radii increase from top to bottom in a group of...

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  13. Assertion (A): Atomic radii of elements decrease across a period from ...

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  14. Assertion (A) : The size of Na^+ ion is less than 'Na' atom. Reason (R...

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  15. It is easier to remove one electron from O than N because Nitrogen has

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  16. Which of the following property decreases down a group :

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  17. Actinides belongs to period.

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  18. Ionization energy is not depending on

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  19. Moseley calculated the number of positive charges in the atoms by anal...

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  20. Group 13(IIIA) elements are known as

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