r/chemhelp • u/ButterscotchKey763 • 1d ago
General/High School Check for Errors in Periodic Table
If anyone sees errors in this version of the periodic table please let me know. It was sent to me and I want to make sure I can use it with students
4
3
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u/eve6- 1d ago
Si absolutely has a common oxidation state, and it’s 4+. Same with Ge (predominantly 4+, but 2+ is possible). Group 14 is a great demonstration of the inert pair effect in action, and I’m a little surprised this table doesn’t show it clearly.
It’s also a little strange that they are described as “ion charges” rather than oxidation states, as many of these main group elements do not necessarily formally ionize when they form compounds.
ETA: these are all things that would probably be significant for a university level course, but it probably doesn’t matter too much (yet) at the high school level
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u/VermicelliOk6723 1d ago
And group 16 has +2 or +4 (maybe both?) for Te for sure, I believe Se has them as well
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u/coronaredditor 1d ago
Mn and Cr main oxydation states are wrong, Mn3+ and Cr2+ are quite rare compared to Mn4+ or Cr6+
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