Potassium - Element information, properties and uses | Periodic Table
Agricultural land, from which harvests are taken every year, needs to have its potassium replenished by adding potassium-based fertilisers. The average human consumes up to 7 grams of potassium a day, and stores about 140 grams in the body cells.
Potassium - Wikipedia
In the periodic table, potassium is one of the alkali metals, all of which have a single valence electron in the outer electron shell, which is easily removed to create an ion with a positive charge (which combines with anions to form salts). In nature, potassium occurs only in ionic salts.
Periodic Table - Ptable
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
Potassium | Definition, Properties, & Reactions | Britannica
2024年10月26日 · Potassium (as K +) is required by all plants and animals. Plants need it for photosynthesis, regulation of osmosis and growth, and enzyme activation. Every animal has a closely maintained potassium level and a relatively fixed potassium-sodium ratio.
Potassium | History, Uses, Facts, Physical & Chemical ... - Periodic Table
Potassium is an alkali metal and was obtained in pure elemental form in 1807 by Hymphry Davy. It is a biologically essential element and also has various industrial applications, including fertilizers, pesticides, explosives etc.
Potassium (K) - Periodic Table
Potassium is the 19th element in the periodic table and has a symbol of K and atomic number of 19. It has an atomic weight of 39.0983 and a mass number of 39. Potassium has nineteen protons and twenty neutrons in its nucleus, and nineteen electrons in four shells.
Potassium (K) - Periodic Table
Potassium is a chemical element of the periodic table with chemical symbol K and atomic number 19 with an atomic weight of 39.0983 u and is classed as alkali metal and is part of group 1 (alkali metal). Potassium is solid at room temperature.
Potassium – Periodic Table
2020年11月21日 · Potassium is a 19. chemical element in the periodic table of elements. It has 19 protons and 19 electrons in the atomic structure. The chemical symbol for Potassium is K.
WebElements Periodic Table » Potassium » the essentials
Potassium is never found free in nature, but is obtained by electrolysis of the chloride or hydroxide, much in the same manner as prepared by Davy. It is one of the most reactive and electropositive of metals and, apart from lithium, it is the least dense known metal.
Potassium (K) [19] — Chemical Element — Periodic Table
Get the facts about element Potassium (K) [19] from the periodic table. Find physical data, electron configuration, chemical properties, aggregation states, isotope data (including decay trees) as well as some historic information.
- 某些结果已被删除