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Give the electronic distribution in magn...

Give the electronic distribution in magnesium atom and magnesium ion how do these electronic configruation differ?

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`{:(, K , L , M) , ("Magnesium atom" (Mg): , 2 , 8 , 2),("Magnesium ion" (Mg^(2+)): , 2 , 8 ,-):}`
`Mg^(2+)` ion has only two shells and its electronic configuration is similar to that of noble gas element neon (Ne) Mg atom has three shells with 2 electrons in the outer shell i.e M-shell.
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Knowledge Check

  • The electron distribution in an aluminium atom is

    A
    `2, 8, 3`
    B
    `2, 8, 2`
    C
    `8, 2, 3`
    D
    `2, 3, 8`

  • Magnesium ion (Mg^(2+)) has the electronic configuration:

    A
    2,8,2
    B
    2,8,8
    C
    2,8,1
    D
    2,8

  • The number of ultimater electrons in magnesium atom are

    A
    12
    B
    1
    C
    8
    D
    7

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