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According to the Periodic Law of element...

According to the Periodic Law of elements, the Variation in properties of elements is related to their ?

A

Nuclear masses

B

Atomic numbers

C

Nuclear neutron-proton number ratio

D

Atomic masses

Text Solution

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The correct Answer is:
B
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MOTION-PERIODIC TABLE -Exercise - 4 | Level-I
  1. The correct order of ionic radius is-

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  2. Arrange Ce^(3+),La^(3+), Pm^(3) and Yb^(3+) in increasing order of the...

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  3. According to the Periodic Law of elements, the Variation in properties...

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  4. A reduction in atomic size the increases in atomic number is a charact...

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  5. Which one of the following groupings represents a collection of isoele...

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  6. The atomic numbers of vandium (V). Chromium (Cr), manganese (Mn) and i...

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  7. Which one of the following sets of ions represents the collection of i...

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  8. Which one of the following ions has the highest value of ionic radius?

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  9. Among Al(2)O(3),SiO(2),P(2)O(5) and SO(3) the correct order of acid st...

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  10. The formation of the oxide ion O((g))^(2-) requires first an exothermi...

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  11. In which of the following arrangements the order is NOT according to t...

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  12. Which of the following oxides is amphoteric in character ?

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  13. Pick out the isoelectronic structures from the following (i) CH(3)^(...

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  14. The lanthanide contraction is responsible for the fact that

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  15. Which of the following factors may be regarded as the main cause the l...

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  16. The increasing order of the first ionization enthalpies of the element...

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  17. Which one of the following sets of ions represents a collection of iso...

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  18. Lanthanide contraction is caused due to -

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  19. Which one of the following constitutes a group of the isoelectronic sp...

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  20. In which of the following arrangements, the sequence is not strictly a...

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