Where should hydrogen be placed in the periodic table?

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Discussion Overview

The discussion revolves around the placement of hydrogen in the periodic table, exploring whether it should belong to group 1, group 7, or if it should be considered outside of any group entirely. The conversation touches on theoretical perspectives and interpretations of hydrogen's properties.

Discussion Character

  • Debate/contested

Main Points Raised

  • Some participants believe that hydrogen does not fit neatly into any group in the periodic table.
  • Others suggest that hydrogen might be more suitably placed in group 1 or group 7 based on its properties.
  • A participant questions the rationale behind placing hydrogen in group 7, noting that all known elements in that group are transition metals.
  • One participant references Wikipedia to argue that while hydrogen is nominally a group 1 element, it does not exhibit behavior typical of alkali metals.
  • Another participant humorously suggests asking hydrogen itself about its placement.

Areas of Agreement / Disagreement

Participants express differing opinions on hydrogen's placement, with no consensus reached on whether it belongs to group 1, group 7, or outside any group.

Contextual Notes

Some claims rely on interpretations of hydrogen's chemical behavior and properties, which may vary based on definitions and contexts. The discussion includes references to external sources, such as Wikipedia, which may not be universally accepted.

ctimage
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Hi all,

I was always of the belief that hydrogen did not belong to any group in the periodic table. After discussions, some say that a group 1 or 7 place might be more suitable. Any opinions would be welcomed hopefully from a physics point-of-view on this topic.Thanks in advance
 
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Has anyone actually asked Hydrogen itself?
 
:smile:
 
What's wrong with where it's at?
 
ctimage said:
Hi all,

I was always of the belief that hydrogen did not belong to any group in the periodic table. After discussions, some say that a group 1 or 7 place might be more suitable. Any opinions would be welcomed hopefully from a physics point-of-view on this topic.

Thanks in advance

and what, specifically, do you base this belief on ?
and don't base it on personal belief rather base it on known science :smile:

from Wiki
the alkali metals comprise the group 1 elements,[note 4] excluding hydrogen (H), which is nominally a group 1 element[4][12] but not normally considered to be an alkali metal[13][14] as it rarely exhibits behaviour comparable to that of the alkali metals.[15] All the alkali metals react with water, with the heavier alkali metals reacting more vigorously than the lighter ones.

So its a sort of "hanger on" in Group one already

again from wiki...
All known elements of group 7 are transition metals

why would you want to put hydrogen in there ?Dave
 
Last edited:

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