Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Position of Hydrogen in the Periodic System of Elements


FOLLOWING Mendeléev's lead, the majority of authors on the subject since his time have represented hydrogen as belonging to the Group I elements. However, there have been some noteworthy exceptions to this representation. Thomsen1 and Bohr2 depicted hydrogen in a central position with a lineage relationship to both the alkali (Group I) and the halogen (Group VII) elements. Remy3 grouped hydrogen as the first member of the halogen series. Ramirez-Torres4 has presented a block form table with hydrogen placed in an isolated group unrelated to either the alkali or halogen elements. Thus, the placing of hydrogen has been a controversial question. In the main, this has been due to the varying properties of hydrogen.

This is a preview of subscription content, access via your institution

Access options

Rent or buy this article

Get just this article for as long as you need it


Prices may be subject to local taxes which are calculated during checkout


  1. Thomsen, J., Z. Anorg. Chem., 9, 190 (1895).

    Article  CAS  Google Scholar 

  2. Bohr, N., Naturwiss., 11, 606 (1923).

    Article  ADS  Google Scholar 

  3. Remy, H., Treatise on Inorganic Chemistry, 1, 838 (Elsevier, 1956).

    Google Scholar 

  4. Ramirez-Torres, O., J. Chem. Educ., 32, 450 (1955).

    Article  Google Scholar 

  5. Hylleraas, E. A., Z. Phys., 65, 209 (1930).

    Article  ADS  CAS  Google Scholar 

  6. Dash, H. H., Nature, 198, 25 (1963).

    Article  ADS  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations


Rights and permissions

Reprints and Permissions

About this article

Cite this article

DASH, H. Position of Hydrogen in the Periodic System of Elements. Nature 202, 1001–1003 (1964).

Download citation

  • Issue Date:

  • DOI:

This article is cited by


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing