Atomtömeggel

Atomtömeggel refers to the mass of an atom. It is typically measured in atomic mass units (amu), where one atomic mass unit is defined as one-twelfth the mass of a carbon-12 atom. The atomtömeggel of an element is the average mass of atoms of that element, considering the relative abundance of its isotopes. Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons, leading to variations in their mass. The concept of atomtömeggel is fundamental in chemistry and physics, as it plays a crucial role in stoichiometric calculations and understanding the properties of matter. The periodic table lists the atomic mass of each element, which is an average value. For instance, the atomtömeggel of hydrogen is approximately 1.008 amu, while that of oxygen is about 15.999 amu. Precise measurements of atomtömeggel are achieved using mass spectrometry. The term is closely related to molar mass, which is the mass of one mole of a substance, expressed in grams per mole (g/mol). The numerical value of the atomtömeggel in amu is approximately equal to the numerical value of the molar mass in g/mol.