Where should hydrogen be placed in the periodic table?

In summary: However, they also acknowledge that hydrogen is not typically considered an alkali metal or a transition metal. In summary, the group is unable to come to a consensus on where hydrogen belongs on the periodic table, with some suggesting group 1 and others suggesting group 7.
  • #1
ctimage
2
0
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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  • #2
Has anyone actually asked Hydrogen itself?
 
  • #3
:smile:
 
  • #4
What's wrong with where it's at?
 
  • #5
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:

Related to Where should hydrogen be placed in the periodic table?

1. What is the atomic number of hydrogen and where does it fall on the periodic table?

The atomic number of hydrogen is 1, and it is located in the first group and first period of the periodic table.

2. Why is hydrogen placed in the first group of the periodic table?

Hydrogen has one valence electron, making it similar to the elements in the first group (alkali metals) which also have one valence electron. Additionally, hydrogen shares some properties with both metals and nonmetals, so its placement in the first group is a compromise.

3. Is hydrogen considered a metal or nonmetal?

Hydrogen is not a metal or nonmetal, but rather a unique element with properties of both. It is classified as a nonmetal in group 1A and a metal in group 7A.

4. What is the significance of hydrogen's position in the periodic table?

Hydrogen's placement in the periodic table is important because it is the lightest and simplest element, and serves as a reference point for all other elements. It also has a unique position as it can form both positive and negative ions, and is essential for the formation of water and organic molecules.

5. Are there any elements with similar properties to hydrogen?

In terms of chemical properties, hydrogen is most similar to the elements in group 1A (alkali metals) and group 7A (halogens). However, in terms of physical properties, hydrogen is most similar to the noble gas helium, as they both have low boiling points and do not react easily with other elements.

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