Unanswered Questions
1,264 questions with no upvoted or accepted answers
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How can an atom have 2 outer shells?
For example, my textbooks says how many electrons in the outer shell in Nickel? and it says the answer is the electrons in both the d shell and s shell. Doesn't shell equal= n quantum number? And n=4 ...
- 26.3k
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Why Silica and normal alumina can damage or destroy many metal complexes?
in case of organic ligand there r several techniques for purification,but in case of metal complex(Cr,Mn,Fe,Co) with schiff base , i have not seen any literature for the purification of them except ...
- 3,042
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2
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Percentage of yield reaction question
By bubbling $\ce{Cl2}$ in a solution containing $176.6~\mathrm{g}$ of $\ce{MgBr2}$ are obtained [sic!] $135~\mathrm{g}$ of $\ce{Br2}$. However, the yield of this reaction is not $100~\%$. How many ...
CommunityBot
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1
answer
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Exceptions in ionization energies of Oxygen and Nitrogen
We all know that it is difficult to remove an electron from atoms that are half-filled or fully filled. Thus they have higher ionization energy.
But today my teacher said that $N^{-3}$ has a lower ...
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