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The first ionization enthalpies of Na,Mg...

The first ionization enthalpies of Na,Mg,Al and Si are in the order

A

`Na lt Mg lt Al lt Si`

B

`Na lt Al lt Mg lt Si`

C

`Na lt Al lt Si lt Mg`

D

`Na gt Mg gt Al gt Si`

Text Solution

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The correct Answer is:
B
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