All three isotopes of hydrogen have identical chemical properties. This is because the number of electrons determines chemical properties, and all three isotopes have one electron in their atoms.

PROF. SODDY'S letter in NATURE of February 4 would seem to lead to certain interesting conclusions about the structure of the atom. It is easy to show that two elements of different atomic weight ...

and the sum of the protons and neutrons gives the atomic mass, the number of neutrons defines the isotope of that element. For example, most carbon (≈ 99 %) has 6 protons and 6 neutrons and is written ...

7}^{14}\textrm{N}\) and \(_{6}^{14}\textrm{C}\) are not isotopes. They have the same mass number, A, but different atomic number, Z, and different chemical symbol - they are not the same element.

Heavy water is a form of water with a unique atomic structure and properties coveted ... with a neutron as well as a proton in its nucleus. This isotope of hydrogen is called deuterium, and ...

Atomic nuclei with “magic numbers” of protons or neutrons in their nuclear shells are extremely stable. Nuclear physicists are especially interested in nuclei with doubly magic numbers—those that have ...

Stable isotopes are non-radioactive forms of atoms. Although they do not emit radiation, their unique properties enable them to be used in a broad variety of applications, including water and soil ...