Alkaline-earth metal | Properties, List, & Reactivity | Britannica
网页4 天之前 · Alkaline-earth metal, any of the six chemical elements that comprise Group 2 of the periodic table. The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). The alkaline-earth elements are highly metallic and are good conductors of electricity.
Alkaline earth metal - Wikipedia
网页The alkaline earth metals are six chemical elements in group 2 of the periodic table. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). [1] The elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure. [2]
Alkaline-earth metal - Properties, Reactivity, Uses | Britannica
网页4 天之前 · Alkaline-earth metal - Properties, Reactivity, Uses: The alkaline-earth elements are highly metallic and are good conductors of electricity. They have a gray-white lustre when freshly cut but tarnish readily in air, particularly the heavier members of the group.
6.10: Alkaline Earth Metals - Chemistry LibreTexts
网页Why are these elements known as “alkaline earth” elements? How many electrons are in the outer shell of the alkaline earth elements? Are the alkaline earth elements more or less reactive than the alkali metals? Explain your answer. Is radium usually considered as part of the alkaline earth category in terms of chemistry? Explain your answer.
What Are the Properties of the Alkaline Earth Metals? - ThoughtCo
网页2019年9月7日 · Alkaline earth metals have distinctive properties. Learn where on the periodic table this element group is found. Discover their common characteristics.
20.5: The Alkaline Earth Metals (Group 2) - Chemistry LibreTexts
网页Alkaline earth metals dissolve in liquid ammonia to give solutions that contain two solvated electrons per metal atom. The alkaline earth metals have a greater tendency than the alkali metals to form complexes with crown ethers, cryptands, and other Lewis bases.
Characteristics of alkaline earth metal | Britannica
网页alkaline earth metal, Any of the six chemical elements in the second leftmost group of the periodic table (beryllium, magnesium, calcium, strontium, barium, and radium). Their name harks back to medieval alchemy .
Alkaline Earth Metals - Science Notes and Projects
网页2016年2月2日 · The alkaline earth metals or alkaline earths are a set of six elements found in the second group (column) of the periodic table. Atoms of each of these elements have two electrons in the outer electron shell. Take a look at the elements in this group and their common properties:
Alkaline-earth Metals - Encyclopedia.com
网页2018年5月29日 · The six alkaline earth metals — beryllium, magnesium, calcium, strontium, barium, and radium — comprise Group 2 on the periodic table of elements. This puts them beside the alkali metals in Group 1, and as their names suggest, the two families share a number of characteristics, most notably their high reactivity.
4.1: The Alkaline Earth Elements - Chemistry LibreTexts
网页2020年8月13日 · The Group 2 metals have a particular name: the alkaline earth metals. The name is derived from the observation that they have such high melting points (Table \(\PageIndex{4}\).1) that they remain solids (earths) in a fire.