Alkali - Wikipedia
In chemistry, an alkali (/ ˈ æ l k ə l aɪ /; from the Arabic word al-qāly, القلوي) is a basic, ionic salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that dissolves in water. A solution of a soluble base has a pH greater than 7.0.
Alkali | Chemical Compound, Properties & Uses | Britannica
Alkali, any of the soluble hydroxides of the alkali metals—i.e., lithium, sodium, potassium, rubidium, and cesium. Alkalies are strong bases that turn litmus paper from red to blue; they react with acids to yield neutral salts; and they are caustic …
Alkali Definition & Meaning - Merriam-Webster
The meaning of ALKALI is a soluble salt obtained from the ashes of plants and consisting largely of potassium or sodium carbonate; broadly : a substance (such as a hydroxide or carbonate of an alkali metal) having marked basic properties. How to use alkali in a sentence.
Alkali metal | Definition, Properties, & Facts | Britannica
Alkali metal, any of the six elements of Group 1 (Ia) of the periodic table—lithium, sodium, potassium, rubidium, cesium, and francium. The alkali metals are so called because reaction with water forms alkalies (i.e., strong bases capable of neutralizing acids).
Alkali Metals: Elements in the First Column of the Periodic Table
2023年8月29日 · The alkali metals are a group of elements in the periodic table with similar properties: They are all shiny, silvery-white, highly reactive metals. The alkali metals are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs) and francium (Fr).
Alkali metal - Wikipedia
The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (K), [note 1] rubidium (Rb), caesium (Cs), [note 2] and francium (Fr). Together with hydrogen they constitute group 1, [note 3] which lies in the s-block of the periodic table.
Alkali Metals - Properties, Electronic Configuration, Periodic …
Alkali metals belong to the s-block elements of the periodic table. Understand the electronic configurations, ionization enthalpy, radii and other properties of group one alkali metals.
3.1: The Alkali Metal Elements - Chemistry LibreTexts
The Group 1 metals have a particular name: the alkali metals. This is due to the formation of alkali (basic) solutions upon their reaction with water. Table \(\PageIndex{3}\).1 lists the derivation of the names of the alkali metals.
Characteristics of alkali metals | Britannica
alkali, Inorganic compound, any soluble hydroxide (―OH) of the alkali metals: lithium, sodium, potassium, rubidium, and cesium. More broadly, ammonium hydroxide ( see ammonia ) and soluble hydroxides of the alkaline earth metals are also called alkalies.
20.4: The Alkali Metals (Group 1) - Chemistry LibreTexts
The alkali metals are potent reductants whose chemistry is largely that of ionic compounds containing the M+ ion. Alkali metals have only a weak tendency to form complexes with simple Lewis bases. …