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Which is not isoelectronic with the othe...

Which is not isoelectronic with the other three

A

CO

B

`NO^+`

C

`CN^-`

D

`O_2`

Text Solution

Verified by Experts

The correct Answer is:
D
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ERRORLESS -ATOMIC STRUCTURE-Atomic number, Mass number, Atomic species
  1. The number of neutrons in oxygen-18 are

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  2. An ion has a charge of -1 . It has eighteen electrons and twenty neutr...

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  3. Which of the following is not isoelectronic ?

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  4. In neutral atom, which particles are equivalent

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  5. Iso-electronic species are

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  6. Which one of the following has unit positive charge and 1 amu mass

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  7. Nitrogen has an atomic number of 7 and oxygen has an atomic number of ...

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  8. which among the following species has the same number o f electrons in...

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  9. An isotone of .(32)^(76)Ge is- (a) .(32)^(77)Ge (b).(33)^(77)As (c).(...

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  10. The nitride ion in lithium nitride is composed of

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  11. Which is not isoelectronic with the other three

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  12. An element has 8 electrons in the valence shell

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  13. An isostere is

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  14. The atomic number of an element is 35 and mass number is 81.The number...

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  15. The compound in which cation is isoelectronic with anion is.

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  16. The mass of the neutron is of the order of

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  17. The atomic weight of an element is 39.The number of neutrons in its nu...

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  18. The atoms of different elements having same mass number but different ...

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  19. Assertion : In case of isoelectronic ions the ionic size increases wit...

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  20. Which one is the wrong statement ?

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