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Radheshyam Bhai Kulkarni
Asked: 2022-11-08T12:21:22+05:30 In:

`Na^(+), Mg^(2+), Al^(3+)`, and `Si^(4+)` are isoelectronic ions. Their ionic size will follow the order
A. `Na^(+) gt Mg^(2+) gt Al^(3+) lt Si^(+4)`
B. `Na^(+) gt Mg^(2+) lt Al^(3+) gt Si^(+4)`
C. `Na^(+) gt Mg^(2+) gt Al^(3+) Gt Si^(+4)`
D. `Na^(+) gt Mg^(2+) gt Al^(3+) lt Si^(+4)`

`Na^(+), Mg^(2+), Al^(3+)`, and `Si^(4+)` are isoelectronic ions. Their ionic size will follow the order
A. `Na^(+) gt Mg^(2+) gt Al^(3+) lt Si^(+4)`
B. `Na^(+) gt Mg^(2+) lt Al^(3+) gt Si^(+4)`
C. `Na^(+) gt Mg^(2+) gt Al^(3+) Gt Si^(+4)`
D. `Na^(+) gt Mg^(2+) gt Al^(3+) lt Si^(+4)`
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  1. Correct Answer – C
    In isoelectronic cations, the size decreases with increases in nucler charge
    `Na^(+) gt Mg^(2+) gt Al^(3+) gt Si^(4+)`

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