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An isotone of .(32)^(76)Ge is-...

An isotone of `._(32)^(76)Ge` is-

A

`._(32)^(77)Ge`

B

`._(33)^(77)As`

C

`._(34)^(77)Se`

D

`._(34)^(78)Se`

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The correct Answer is:
B, D
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ALLEN-ATOMIC STRUCTURE-Exercise - 01
  1. The approximate size of the nucleus of .28^64 Ni is :

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  2. Which is true about an electron-

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  3. An isotone of .(32)^(76)Ge is-

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  4. When alpha particle are sent through a thin metal foil ,most of the...

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  5. Many elements have non-integral atomic masses because

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  6. The MRI (magnetic resonance imaging) body scanners used in hospitals o...

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  7. Photon of which light has maximum energy :

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  8. The value of Planck's constant is 6.63 xx 10^-34 Js. The velocity of l...

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  9. Bohr's theory is not applicable to-

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  10. What is likely to be principal quantum number for a circular orbit of ...

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  11. Which is the correct relationship-

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  12. If the value of E=-78.4 "kcal//mol", the order of the orbit in hydroge...

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  13. If velocity of an electron in 1st orbit of H atoms is V , what will b...

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  14. In a certain electronic transition in the hydrogen atoms from an init...

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  15. Match the following - {:((a),"Energy of ground state of" He^(+),(i)...

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  16. The energy of hydrogen atom in its ground state is -13.6 eV. The ener...

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  17. Total no of lines in Lyman series of H spectrum will be- (where n=n...

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  18. The spectrum of He is expected to be similar to.

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  19. What possibly can be the ratio of the de Broglie wavelength for two el...

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  20. The uncertainty in momentum of an electron is 1 xx 10^-5 kg - m//s. Th...

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