Question

question 1. hydrogen primarily exists in three distinct forms: hydrogen - 1, hydrogen - 2, and hydrogen - 3. hydrogen - 1, the most common form, consists of one proton and no neutrons. hydrogen - 2, also known as deuterium, contains one proton and one neutron, and hydrogen - 3, or tritium, contains one proton and two neutrons. despite sharing the same chemical properties, these forms have different physical properties, such as density and stability. for instance, tritium is radioactive and decays over time, while hydrogen - 1 and hydrogen - 2 are stable and do not undergo such changes. based on the information in the passage, explain the differences between the three unique forms of hydrogen and specify the term used in chemistry to refer to these distinct forms.

Explanation:

Hydrogen - 1 (protium), Hydrogen - 2 (deuterium), and Hydrogen - 3 (tritium) are isotopes of hydrogen. Isotopes have the same number of protons (same chemical properties) but different numbers of neutrons, leading to different physical properties like density and stability. Tritium is radioactive and decays over time, while protium and deuterium are stable.

Answer:

Hydrogen - 1 (protium) has 1 proton and 0 neutrons, is stable. Hydrogen - 2 (deuterium) has 1 proton and 1 neutron, is stable. Hydrogen - 3 (tritium) has 1 proton and 2 neutrons, is radioactive and decays over time. The term used to refer to these distinct forms is isotopes.