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The enrgy level fo 4s-orbital is less th...

The enrgy level fo 4s-orbital is less than 3d- orbital because :

A

4s-orbital is more near to nucleus than 3d-orbital

B

4s-orbital penetrates more into the nucleus than 3d-orbital

C

4s-orbital can have only two elecrrons whereas 3d can have 10 electrons

D

4s-orbital is spherical and 3d-orbital is doulbe dumb-bell

Text Solution

Verified by Experts

The correct Answer is:
B
4s-prnotal have three small peaks closer to nucleus in addition to 4th higher peak and thus penerates more in nucleus .
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  12. The pair having identical velue fo e//m:

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