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The e//m ratio for electron was determin...

The e//m ratio for electron was determined by ……..

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The e/m ratio for cathode rays:

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Knowledge Check

  • Charge to mass ratio of electron was determined by

    A
    James Chadwick
    B
    J.J. Thomson
    C
    Goldstein
    D
    Ernest Rutherford

  • The e/m ratio for cathode rays

    A
    is a constant value regardless of the nature of gas taken in the tube
    B
    varies as the atomic number of the element forming cathode in the discharge tube changes
    C
    varies as atomic number of the gas in the tube varies
    D
    has the smallest value when the discharge tube is filled with hydrogen

  • The (e)/(m) value of electron is

    A
    `1.76 xx 10^(-11) ckg^(-1)`
    B
    `1.76 xx 10^(11) ckg^(-1)`
    C
    `1.76 xx 10^(12) kg^(-1)c`
    D
    `1.76 xx 10^(13)kg^(-1)c`
    • CENGAGE CHEMISTRY-ATOMIC STRUCTURE-Exercises Fill In The Balnks
    1. The e//m ratio for electron was determined by ……..

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    2. The charge of electron is ………

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    3. The charge on alpha particle is ………The charge on proton

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    4. Neutron was discovered by ………

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    5. The angular momentum of the electron, according to Bohr's model , is ...

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    6. The shape of s orbital is ………white the shape of p orbital

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    7. The shape of orbital is determined by ………quantum number

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    8. The principal quantum number determines ……….of the atom

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    9. The dual nature of radiation was proposed by ………..

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    10. The wave charaters of electron was experimenally verified by ………..

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    11. Isotopes are those atoms which have same ………..

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    12. .(6)^(14)C and .(8)^(16) O are ………..

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    13. For each value of l the possible value of m(1) are………

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    14. In hydrogen spectum the limiting line the value of n …………

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    15. In the third energy level , there are ….. Orbirtals

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    16. In the third energy level , the maximum number of electron can be acc...

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    17. The uncertainty in possition and momentum has a value ………..

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    18. In the spectrum of visible light , the red light has maximum ……… and ...

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    19. The velocity of all electromagnetic radiation is ………..

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    20. The 2p(x) ,2p(y) and 2p(z) orbitals of atom have identical shapes bu...

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