Wednesday, March 29, 2017

hsab - Hardness and softness are terms used to describe which aspect of acidic behaviour?


What do hardness and softness mean?


Is it something to do with the polarisability.




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periodic trends - Comparing radii in lithium, beryllium, magnesium, aluminium and sodium ions

Apparently the of last four, MgX2+ is closest in radius to LiX+. Is this true, and if so, why would a whole larger shell ($\ce{...