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

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

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`1.1` Thonson
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Knowledge Check

  • The ratio of charge to mass of an electron in coulombs per gram was determined by J.J. Thomson. He determined this ratio by measuring the deflection of cathode rays in electric and magnetic fields. What value did he find for this ratio?

    A
    `-1.76xx10^(8)` coulombs/g
    B
    `1.76xx10^(-8)` coulombs/g
    C
    `-1.76xx10^(10)` coulombs/g
    D
    `-1.76xx10^(-10)` coulombs/g
    • CENGAGE CHEMISTRY ENGLISH-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 ………while the shape of p-orbital is............

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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 nature of electron was 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 ml 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 position 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 electromagnetic radiation in a medium of permittivity ...

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    20. The 2px and 2py, 2pz, orbitals of an atom have identical shapes but di...

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