Potassium - Wikipedia
网页Potassium is a chemical element; it has symbol K (from Neo-Latin kalium) and atomic number 19. It is a silvery white metal that is soft enough to easily cut with a knife. [8] Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure.
钾（化学元素）_百度百科
网页钾（Kalium），元素符号K，对预防高血压等慢性病具有重要作用。 原子序数为19，位于元素周期表第四周期IA族，属于碱金属元素。 单质是一种银白色的软质金属，蜡状，可用小刀切割，熔沸点低，密度比水小，化学性质极度活泼（比钠还活泼）。
Low potassium (hypokalemia) Causes - Mayo Clinic
网页2022年6月23日 · Low potassium (hypokalemia) has many causes. The most common cause is excessive potassium loss in urine due to prescription medications that increase urination. Also known as water pills or diuretics, these types of medications are often prescribed for people who have high blood pressure or heart disease.
Potassium | Definition, Properties, & Reactions | Britannica
网页2024年9月13日 · Potassium, chemical element of the alkali metal group that is essential for life, is present in all soils, and is denoted by chemical symbol K.
POTASSIUM中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页potassium的 例句. Conductance and kinetics of delayed rectifier potassium channels in nodal cells of the rabbit heart. Organic matter, carbon and nitrogen had the lowest coefficient of variation in leaf fall, while those for magnesium, phosphorus and …
Potassium – The Nutrition Source
网页Potassium is found naturally in many foods and as a supplement. Its main role in the body is to help maintain normal levels of fluid inside our cells. Sodium, its counterpart, maintains normal fluid levels outside of cells. Potassium also helps muscles to contract and supports normal blood pressure.
Potassium | K | CID 5462222 - PubChem
网页Potassium | K | CID 5462222 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Potassium - Element information, properties and uses | Periodic …
网页Whilst Davy named his new metal potassium after the potash, Berzelius, the Swedish chemist who invented the international system of chemical symbols now used by chemists the world over, preferred the name kalium for the …
Potassium (K) - Periodic Table
网页Potassium has nineteen protons and twenty neutrons in its nucleus, and nineteen electrons in four shells. It is located in group one, period four and block s of the periodic table. Soft silvery metallic element belonging to group 1 of the periodic table (alkali metals). Occurs naturally in seawater and a many minerals.
10 Potassium Facts (K or Atomic Number 19) - ThoughtCo
网页2019年9月15日 · Fast Facts: Potassium. Appearance: Potassium is a solid, silvery-gray metal at room temperature. Potassium is element number 19. This means the atomic number of potassium is 19 and each potassium atom has 19 protons. Potassium is one of the alkali metals, which means it is a highly reactive metal with a valence of 1.
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