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Which of the given pairs of atomic numbe...

Which of the given pairs of atomic numbers represents elements in the same group?

A

11,19

B

6,12

C

4,16

D

8,17

Text Solution

Verified by Experts

The correct Answer is:
A
Atomic number 11:2, 8,1
Atomic number 19: 2,8,8,1
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MTG IIT JEE FOUNDATION-PERIODIC CLASSIFICATION OF ELEMENTS-Exercise (Multiple Choice Questions Level-2)
  1. Observe the following trends in the periodic properties, in the period...

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  2. Identify the pair of atomic numbers representing s-block elements

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  3. Listed below are the locations of certain elements in groups and perio...

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  4. The element with atomic number 14 is hard and forms acidic oxide and a...

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  5. Arrange the following elements in order of their increasing ionization...

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  6. Which of the given pairs of atomic numbers represents elements in the ...

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  7. Considering the elements B, Al, Mg and K, the correct order of their m...

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  8. Which of the following will have equal number of electrons?

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  9. Element X forms a chloride with formula XCl(4) which is a solid with l...

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  10. Which of the following sets of elements have elements with four electr...

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  11. An element X combines with hydrogen to form a compound XH(3). The elem...

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  12. Among O, C, F, Cl, Br, the correct order of increasing atomic radii is

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  13. Which is true about electronegativit order?

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  14. Which one of the following depict the correct representation of atomic...

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  15. Which of the following pairs of atomic numbers represents elements bel...

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  16. Which of the following statements is correct about element ""(8)^(17)A...

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  17. The elements A, B, C and D have indicated electronic arrangement, whic...

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  18. In the periodic table, the ionisation potential in a group…..from top ...

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  19. Which one of these group of elements is also called the halogen family...

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  20. The correct order of increasing acidic nature of SO(2), SiO(2), P(2)O(...

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