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An element with atomic number 20 will be...

An element with atomic number 20 will be placed in which period of the periodic table

A

`4`

B

`3`

C

`2`

D

`1`

Text Solution

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The correct Answer is:
A
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CENGAGE CHEMISTRY-PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY-Exercises (Singlecorrect) General Electronic Configuration And Periodicity
  1. The statement that is false regarding the long form the periodic tabl...

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  2. In the periodic table, going down in fluorine group

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  3. In the long form of periodic table all the non-metals are placed under

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  4. Alkali metals in each period have

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  5. Which one pair of atoms or ions will have same configuration ?

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  6. In the modern periodic table, the period indicates the value of

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  7. Which of the following does not reflect periodicity of elements ?

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  8. The 3rd period of the periodic table contains

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  9. Which of the following set

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  10. Which of the following belongs to the category of transition metal?

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  11. Without looking at the periodic table, select the elements belonging t...

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  12. The elements of same group of the periodic table have

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  13. The elements which are characterised by the outer shell configuration ...

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  14. The outer most electronic configuration of transition elements is

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  15. An element with atomic number 20 will be placed in which period of the...

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  16. The statement that is not correct for periodic classification of eleme...

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  17. In the modern periodic table, elements are arranged in

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  18. Name of the heaviest naturally occurring element.

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  19. The screening effect of d-electron is

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  20. Which of the following represents the electronic configuration of the ...

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