Il est présent à l’intérieur de chacune des cellules de l’organisme. Le potassium (symbole K dans le tableau périodique des éléments) compte parmi les sels minéraux.

Le symbole chimique K vient du kalium, le latin médiéval pour la potasse, qui a pu avoir dérivé du mot arabe qali, voulant dire l'alcali. Effets du potassium sur la santé On peut trouver du potassium dans les légumes, les fruits, les pommes de terre, la viande, le pain, le lait, les noisettes. Donner la représentation symbolique de cet ion, sachant que le symbole du sodium est \ce{Na}. L'ion sodium est composé de 11 protons, 12 neutrons et 10 électrons.

Le potassium est absorbé à partir d’aliments et de boissons qui contiennent des électrolytes (y compris du potassium) et éliminé principalement dans l’urine. Une petite quantité est également perdue dans le tube digestif et la sueur. Il est présent à l’intérieur de chacune des cellules de l’organisme. The symbol for a potassium ion is K+ The charge is +1 because potassium is in the first group on the periodic table. Les reins en bonne santé peuvent varier la quantité de potassium éliminée pour s’adapter aux écarts de consommation.



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