Sunday, May 21, 2017

word choice - Difference between 月曜 and 月曜日


I just want to know what the difference is between the two and their proper usage because in dictionary they seem almost the same.




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

Apparently the of last four, $\ce{Mg^2+}$ is closest in radius to $\ce{Li+}$. Is this true, and if so, why would a whole larger shell ($\ce{...