calcium44

Calcium-44, denoted as 44Ca, is a stable isotope of calcium, a chemical element with the atomic number 20. It is one of the five stable isotopes of calcium, with the others being calcium-40, calcium-42, calcium-43, and calcium-46. Calcium-44 is the most abundant isotope of calcium, making up approximately 2.09% of all naturally occurring calcium.

Calcium-44 is produced through the alpha decay of titanium-44, which has a half-life of about 63 years. This decay process is significant in the study of the Earth's mantle and the early solar system, as it provides a means to date geological events and understand the processes that have shaped our planet.

In terms of its nuclear properties, calcium-44 has a mass number of 44, which means it has 20 protons and 24 neutrons in its nucleus. Its atomic mass is approximately 43.955 amu (atomic mass units). The isotope has a nuclear spin of 0, which means it is not magnetic.

Calcium-44 is used in various scientific applications, including as a tracer in geochemical studies and in the calibration of mass spectrometers. Its stability and abundance make it a valuable resource for these purposes.