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Number of elements present in 5th period...

Number of elements present in 5th period is

A

18

B

32

C

8

D

24

Text Solution

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The correct Answer is:
A
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VK JAISWAL-PERIODIC PROPERTIES-Level 1
  1. The most electropositive element possesses the electronic configuratio...

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  2. Which one of the following elements shows both positive and negative o...

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  3. Number of elements present in 5th period is

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  4. Which of the following arrangements shows the correct order of decreas...

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  5. The outer electronic structure of lawrencium (atomic number 103) is:

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  6. The element having the lowest atomic number and a ground state electro...

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  7. Which of the following sets of atomic numbers corresponds to elements ...

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  8. The atomic numbers of the metallic and non-metallic elements which are...

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  9. In the periodic table, metallic chracter of the elements shows one of ...

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  10. Nucleus of an element contains 9 protons Its valency would be :

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  11. Transition metals are not characterized by:

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  12. Sodium ordinarily does not show an oxidation state of +2, because of i...

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  13. Which of the following pairs of molecules have the almost identical bo...

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  14. According to modern periodic law the elements with similar chemical an...

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  15. Give the symbol of the elements of lowest atomic number that has three...

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  16. In the fourth period of the periodic table, how many elements have one...

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  17. Assuming that elements are formed to complete the seventh period, what...

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  18. Which of the following represents an excited state of an atom?

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  19. Choose the correct statement regarding transition elements?

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  20. Which one of the following is a different pair?

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