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Write the electronic configurations of t...

Write the electronic configurations of the elements with atomic numbers 61, 91, 101 and 109.

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Z = 61 (Promethium, Pm), Electronic configuration : `[Xe]^(54)4f^(5)5d^(0)6s^(2)`.
Z = 91 (Protactium, Pa), Electronic configuration : `[Rn]^(86)5f^(2)6d^(1)7s^(2)`.
Z = 101 (Mendelevium, Md), Electronic configuration : `[Rn]^(86)5f^(13)6d^(0)7s^(2)`
Z = 109 (Meitnerium, Mt), Electronic configuration : `[Rn]^(86)5f^(14)6d^(7)7s^(2)`.
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Knowledge Check

  • The electronic configuration of the element with Atomic number 19 is

    A
    2,8,7
    B
    2,9,8
    C
    2,8,8,1
    D
    2,10,7

  • The electronic configuration of an element with atomic number 64 is

    A
    `6s^(2) 5d^(1) 4f^(7)`
    B
    `6s^(2) 5d^(0) 4f^(8)`
    C
    `6s^(1) 5d^(0) 4f^(7)`
    D
    `6s^(1) 5d^(2) 4f^(7)`

  • The electronic configuration of an element with atomic number 24 is

    A
    `1s^2,2s^2,2p^6,3s^2,3p^6,3d^4,4s^2`
    B
    `1s^2,2s^2,2p^6,3s^2,3p^6,3d^10`
    C
    `1s^2,2s^2,2p^6,3s^2,3p^6,3d^6`
    D
    `1s^2,2s^2,2p^6,3s^2,3p^6,3d^5,4s^1`

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