Harmonic motion is caused by restoring force, acting on a body that is displaced from its equilibrium position. This force tries to put the body back in equilibrium. Usual examples are the motion of a body attached to elastic spring (see: Hooke’s law) and the motion of mathematical pendulum. The body undergoes periodic motion around the equilibrium point.
Electron microscope is a form of microscope that uses a beam of electrons instead of a beam of light (as in the optical microscope) to form a large image of a very small object. In optical microscopes the resolution is limited by the wavelength of the light. High-energy electrons, however, can be associated with a considerably shorter wavelength than light; for example, electrons accelerated to energy of 105 electronvolts have a wavelength of 0.004 nm enabling a resolution of from 0.2 nm to 0.5 nm to be achieved.
Mach number (Ma) is a dimensionless quantity used in fluid mechanics, defined by
where v is velocity and c is the speed of sound.
Magnetochemistry is a branch of physical chemistry which studies relations between magnetism and the chemical structure of matter.
Malleability is a property of something that can be worked or hammered or shaped under pressure without breaking.
Manganometry is a quantitative oxidimetric method based on measurement of potassium permanganate (KMnO4) spent for an oxidation of the matter in question.
Mannich reaction is a process in which hydrogen atoms in organic compounds are replaced with a methyl group.
Generalic, Eni. "OFICINAVIRTUAL.ISSSTE.GOB.MX." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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Periodic Table