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What are Iso-electronic species? Arrange...

What are Iso-electronic species? Arrange the following in the increasing order of their ionic radius `N^(-3),Mg^(+2),Na^(+)` and `O^(-2)`.

Text Solution

Verified by Experts

Atoms and ions containing same number of electrons are called isoelectronic species correct order is
`Mg^(+2),Na^(+),O^(-2),N_(-3)`
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Knowledge Check

  • Arrange the following in increasing order of their atomic radius : Na,K, Mg, Rb

    A
    M lt K lt Na lt Rb
    B
    Mg,Na lt K lt Rb
    C
    Mg lt Na lt Rb ltK
    D
    Na lt K lt Rb lt Mg

  • Arrange the following in the increasing order of their bond order O_(2),O_(2)^(+),O_(2)^(-) and O_(2)^(- -)

    A
    `O_(2)^(- -) , O_(2)^(-),O_(2)^(+),O_(2)`
    B
    `O_(2)^(+),O_(2),O_(2),^(-),O_(2)^(- -)`
    C
    `O_(2),O_(2)^(+),O_(2)^(-),O_(2)^(- -)`
    D
    `O_(2)^(- -),O_(2)^(-),O_(2),O_(2)^(+)`

  • Arrange the following in the increasing order order of their bond order : O_(2), O_(2)^(+), O_(2)^(-) and O_(2)^(2-) :

    A
    `O_(2)^(2-), O_(2)^(-), O_(2)^(+), O_(2)`
    B
    `O_(2)^(+), O_(2), O_(2)^(-), O_(2)^(2-)`
    C
    `O_(2), O_(2)^(+),O_(2)^(-), O_(2)^(2-)`
    D
    `O_(2)^(2-),O_(2)^(-), O_(2), O_(2)^(+)`

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