CBSE Class 11-science Answered
Account for why the alkaline earth metals are harder than Alkali metals?
Asked by Arun Iyer | 01 Feb, 2011, 06:47: PM
Expert Answer
Dear Student,
The electronic configuration of alkaline earth metals is ns2, while for alkali metals is ns1. So, in alkaline earth metals due to increased Zeff, there are more electrons in smaller area(atomic radii). That's why they are more denser.
We hope that this clarifies your query
Regards
Team Topperlearning
Answered by | 01 Feb, 2011, 09:39: PM
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