- âge de calcium
- возраст по кальцию
Dictionnaire polytechnique Français-Russe. 2013.
âge de calcium
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Calcium — (pronEng|ˈkælsiəm) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth s crust. Calcium is also … Wikipedia
CALCIUM — Le calcium, élément chimique de symbole Ca et de numéro atomique 20, est le plus léger des métaux alcalinoterreux vrais. Il représente environ 3,45 p. 100 du poids de la croûte terrestre et se classe, par ordre d’abondance, au troisième rang des… … Encyclopédie Universelle
Calcium oxalate — IUPAC name calcium ethanedioate … Wikipedia
Calcium, New York — Infobox Settlement official name = Calcium, New York settlement type = CDP nickname = motto = imagesize = image caption = image |pushpin pushpin label position = pushpin map caption =Location within the state of New York pushpin mapsize = mapsize … Wikipedia
Calcium-aluminium-rich inclusion — A calcium aluminium rich inclusion or Ca Al rich inclusion (CAI) is a centimeter sized light colored calcium and aluminium rich inclusion found in carbonaceous chondrite meteorites. CAIs consist of minerals that are among the first solids… … Wikipedia
Calcium — A mineral found mainly in the hard part of bones. Bones serve as a storage area for calcium. Calcium is added to bones by cells called osteoblasts. It is removed from bones by cells called osteoclasts. When children consume calcium, they absorb… … Medical dictionary
Age of the Earth — This article is about scientific estimates of the age of the Earth. For religious and other non scientific estimates, see Dating Creation. Earth as seen from Apollo 17 The age of the Earth is 4.54 billion years (4.54 × 109 years ± 1%) … Wikipedia
Calcium deficiency — A low level of calcium in the blood (hypocalcemia) makes the nervous system highly irritable and causes tetany (spasms of the hands and feet, muscle cramps, abdominal cramps, overly active reflexes, etc.). Chronic calcium deficiency contributes… … Medical dictionary
Calcium excess — Overly high intake of calcium can result in levels of calcium that are too high in the blood (hypercalcemia) and this may cause muscle weakness and constipation, affect the conduction of electrical impulses in the heart (heart block), lead to… … Medical dictionary
Calcium 48 — Le calcium 48, noté 48Ca, est l isotope du calcium dont le nombre de masse est égal à 48 : son noyau atomique compte 20 protons et 28 neutrons avec un spin 0+ pour une masse atomique de 47,952534 g/mol. Il est caractérisé par un… … Wikipédia en Français
Âge de la Terre — la Terre vue d Apollo 17 L Âge de la Terre est de 4,54 milliards d années (4.54 × 109 years ± 1%)[1]. Cette datation repose sur des preuves scientifique … Wikipédia en Français
