Write isotopic symbols in the form X-A (e.g., C-13) for each isotope. d. the hydrogen isotope with one neutron

Key Concepts

Isotopes

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons. This difference in neutron count results in varying atomic masses for the isotopes of the same element. For example, carbon has isotopes like C-12 and C-14, where the numbers indicate the total number of protons and neutrons.

Isotopic Notation

Isotopic notation is a way to represent isotopes using the format X-A, where 'X' is the chemical symbol of the element and 'A' is the mass number (the sum of protons and neutrons). For instance, in the notation H-2, 'H' represents hydrogen and '2' indicates that this isotope has one proton and one neutron, making it deuterium.

Hydrogen Isotopes

Hydrogen has three primary isotopes: protium (H-1), deuterium (H-2), and tritium (H-3). Protium has no neutrons, deuterium has one neutron, and tritium has two neutrons. The question specifically refers to deuterium, which is represented as H-2, indicating it has one neutron in addition to its single proton.