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Which of the following metal requires ra...

Which of the following metal requires radiation of highest frequency to cause emission of electrons?

A

Na

B

Mg

C

K

D

Ca

Text Solution

Verified by Experts

The correct Answer is:
B
Because it has highest IE out of the four given elements.
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DINESH PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-All Questions
  1. Which of the following does not reflect periodicity of elements ?

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  2. In the long form of the periodic table, the transition metals are plac...

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  3. Which of the following metal requires radiation of highest frequency t...

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  4. Which of the following ions is smallest in size ?

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  5. Which of the following elements is/are not liquid at 30^@C ?

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  6. Of the given alkali metals, the one with smallest size is

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  7. Which among the following elements has lowest value of ionisation pote...

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  8. Which among the following elements have lowest value of IE1?

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  9. Which of the following pair of elements belongs period of the periodic...

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  10. The first element of rare earth metals is

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  11. The oxide of which of the following elements will be acidic in charact...

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  12. Generally, the valency of noble gases is

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  13. Paulings electronegativity values for elements are useful in predictin...

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  14. The number of elements in the 4th period of periodic table is

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  15. Which period of the periodic table contains maximum number of elements...

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  16. In the second period of periodic table, the ionisation potential of el...

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  17. The valence shell electronic structure of an element is ns^2 np^2. The...

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  18. Which of the following pair of atomic numbers represents s-block eleme...

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  19. Atoms with high value of IE1 always have

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  20. The elements with atomic number 26 will be found in group

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