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One of the following statements is not t...

One of the following statements is not true. It is

A

As the atomic number increases, the size of the atom decreases in groups.

B

As the atomic number increases, the nuclear charge increases in periods.

C

In group the size of atom increases from top to bottom

D

In a period the size of atom decreases from left to right

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VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS-THE PERIODIC TABLES-EXERCISE
  1. Which of the following is the limitation is Mendeleeff's periodic tabl...

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  2. Periodicity is observed in periodic table due to reappearance of simil...

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  3. One of the following statements is not true. It is

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  4. The atomic radius decreases in a period due to

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  5. Valency of an element indicates

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  6. The formula of oxides and chloride of Eka-Silicon is

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  7. Guess the atomic weight of middle element if the atomic weights ...

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  8. Ea2O3: EsO2 : GeO2 [ Ea = Eka aluminium, Es= Eka silicon]

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  9. Mendeleeff said about eka-aluminium "If I hold it in my hand, it will ...

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  10. Which of the following elements are not available at the time of Mende...

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  11. Which of the following element does not contain '3s' orbital ?

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  12. Why are lanthanides and actinides placed separately at the bot...

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  13. If 'He' is not a inert gas, it should be placed in the group.

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  14. n = 1: 1s ::n = 2: ………….

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  15. Guess the period if it has only '8' elements and K, L shells.

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  16. Which one shrinks in size than atom : i) Na^+ii) Na iii) Cl^- iv) CI

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  17. The ionization potential of 'Be' is more than 'B'. This is due to

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

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  19. The element at the bottom of a group would be expected to show ...

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  20. The outermost main shell of an element is 'M' shell. This element belo...

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