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Which is true about an electron-...

Which is true about an electron-

A

rest mass of electron is `9.1xx10^(-28)g`

B

mass of electron increases with the increase in velocity

C

molar mass of electron is `5.48xx10^(-4)g//"mole"`

D

`e//m` of electron is `1.7xx10^(8) "coulomb"//g`

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The correct Answer is:
A, B, C, D
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ALLEN-ATOMIC STRUCTURE-Exercise - 01
  1. Which of the following is iso-electronic with neon-

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  2. The approximate size of the nucleus of .28^64 Ni is :

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  3. Which is true about an electron-

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

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

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  6. Many elements have non-integral atomic masses because

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

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  8. Photon of which light has maximum energy :

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

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  10. Bohr's theory is not applicable to-

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

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  12. Which is the correct relationship-

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

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

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

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

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

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

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

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

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