Deuterium is often represented by the chemical symbol D. Since it is an isotope of hydrogen with mass number 2, it is also represented by 2H. IUPAC allows both ...

Hydrogen-2 (deuterium) Deuterium consists of 1 proton, 1 neutron, and 1 electron. Deuterium, 2H (atomic mass 2.014101777844(15) Da), the other stable hydrogen ...

The atomic number of hydrogen-2 is one. This is because the number of protons remains the same in all isotopes of an element. It is the number of protons ...

H or 21H Mass number A: 2 (= number of nucleons) Atomic number Z: 1 (= number of protons) Neutrons N: 1 Isotopic mass: 2.0141017781(8) u (atomic weight of ...

17 сент. 2021 г. · False. When written in hyphen notation, the 2 in hydrogen-2 does not represent the atomic number. Instead, it represents the mass number of the hydrogen atom.