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The radius of innermost electron orbit o...

The radius of innermost electron orbit of a hydrogen atom is `5.3xx10^(-11)m`. What is the radius of orbit in second excited state?

Text Solution

Verified by Experts

`(r_3)/(r_1)=(n_3^2)/(n_1^2)=(3^2)/(1^2)=9`
`:. r_3=9r_1=9xx5.3xx10^(-11)m`
`=4.77xx10^(-10)m`
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Knowledge Check

  • If the radius of inner most electronic orbit of a hydrogen atom is 5.3xx10^(-11) m, then the radii of n=2 orbit is

    A
    `1.12 Å`
    B
    `2.12 Å`
    C
    `3.22 Å`
    D
    `4.54 Å`

  • The radius of an electron orbit in a hydrogen atom is of the order of

    A
    `10^(-8)m`
    B
    `10^(-9)m`
    C
    `10^(-11)m`
    D
    `10^(-13)m`

  • The radius of an electron orbit in a hydrogen atom is of the order of.

    A
    `10^(-8) m`
    B
    `10^(-8) m`
    C
    `10^(-11) m`
    D
    2eV

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