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Which of the following pairs has element...

Which of the following pairs has elements containing same number of electrons in the outermost orbit?

A

N,O

B

Na, Cl

C

Ca, Cl

D

Cl, Br

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The correct Answer is:
D
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AAKASH SERIES-PERIODIC CLASSIFICATION-OBJECTIVE EXERCISE - 2 (PERIODIC CLASSIFICATION)
  1. The element which belong to 3rd period and IVA group of periodic table...

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  2. Screening by inner electrons will be more effective in

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  3. Which of the following pairs has elements containing same number of el...

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  4. The period that includes all blocks of elements is

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  5. Among s-block metals and transition metals, which are more metallic?

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  6. Element with atomic number 52 belongs to

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  7. The period number and group number in which maximum number of elements...

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  8. The general electronic configuration of f-block elements is

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  9. The common oxidation state exhibited by inner transition elements usua...

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  10. The pair of atomic numbers which represent the p-block elements

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  11. Which of the following is an element present in the d-block, but not a...

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  12. Which of the following is an alloy of non-transition elements?

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  13. Common oxidation state of elemental transition metal is

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  14. Configuration that does not denote a transition element

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  15. An element of 5f-series but has no electrons filled in 5f-sub shell

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  16. An element has 18 electrons in the outer most shell. The element is

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  17. Element with electronic arrangement [Ar]3d^24s^2 belongs to

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  18. Number of outer shells partially filled for representative elements

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  19. Which of the following pairs has both members from the same group of t...

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  20. The elements with atomic number 10, 18, 36, 54 and 86 are all

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