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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

atomic masses

B

nuclear masses

C

atomic number

D

nuclear neutron-proton number ratios.

Text Solution

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The correct Answer is:
C
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DINESH PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-All Questions
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  2. The ions O^(2-), F^(-), Na^(+), Mg^(2+), and Al^(3+) are isoelectronic...

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

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

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  5. Arrange in order of increasing I.P.

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  6. Number of elements present in 5th period is

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  7. What is the general outer electronic configuration of the coinage meta...

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  8. How does the ionisation energy of 1st group elements very ?

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  9. The electron gain enthalpy values (in kJ mol^(-1) ) of three halogens,...

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  10. An atom with high electronegativity has

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  11. In any period of the periodic table, valency of an element with respec...

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  12. For the electron affinity of halogens (with -ve sign), which of the fo...

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  13. The elements with atomic numbers 9, 17, 35,53, 85 and all

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  14. In a given shell, the order of screening effect is

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  15. Correct order of radii is

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

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  17. Among Al(2)O,SiO(2),P(2)O(3) and So(2) the correct order of acid stren...

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

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

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  20. Ionic radii are

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