Chemists Confirm the Existence of New Type of Bond

[xocet]

7. It is improper for Scientific American to call muonium a "hydrogen isotope"....

Chemists Confirm the Existence of New Type of Bond
A “vibrational” chemical bond predicted in the 1980s is demonstrated experimentally

...

So, in 1989, when chemists experimenting at a nuclear accelerator in Vancouver observed that a reaction between bromine and muonium—a hydrogen isotope—slowed down when they increased the temperature, they were flummoxed.

...

http://www.scientificamerican.com/article/chemists-confirm-the-existence-of-new-type-of-bond/

muonium

Atom-like particle consisting of a positive muon and an electron.

http://goldbook.iupac.org/M04069.html

isotopes

Nuclides having the same atomic number but different mass numbers.

http://goldbook.iupac.org/I03331.html

atomic number, Z
Also contains definition of: proton number

The number of protons in the atomic nucleus.

http://goldbook.iupac.org/A00499.html

mass number, A

Total number of heavy particles (protons and neutrons jointly called nucleons) in the atomic nucleus. Also called nucleon number. Symbol m in mass spectrometry.

http://goldbook.iupac.org/M03726.html

More information on muons:

http://pdg.lbl.gov/2014/listings/rpp2014-list-muon.pdf

Why take the route of oversimplification and, thus, misrepresentation?