Tepper, Frederick, and James L. Dye. They have two outer valence electrons which they readily lose. They are related to the Alkali metals, but they do not react as much because they need more energy to remove their two electrons, So they do not have to be stored in petrol. The alkaline earth metals have the common properties of metals, are silvery-grey in colour and good conductors of heat and electricity. But right now we’d like to explain about uses of alkaline earth metal in daily life, which is beryllium, magnesium, calcium, strontium, barium and radium are inside that group. The earliest known alkaline earth was line (latin : calx). What are Alkali Metals The alkaline earth metals are less reactive than the alkali metals. In … There are six alkaline earth metals, including beryllium, magnesium, calcium, strontium, barium and radium. The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). All the alkaline earth metals readily lose their two outermost electrons to form cations with a 2+ charge. The alkaline earth metals tend to form +2 cations. They can achieve the noble gas state easily, by removing the outermost electron in the valence shell. They are all metals and very reactive therefore none of these metals do not occur as free metals in nature. They are fairly reactive under standard conditions. Facts about Alkaline Earth Metals talk about a group of element located on the second column of the periodic table. The name alkaline earth suggest that these metals form alkalies with water and are found in earth’s crust. Barium, an Alkaline Earth Metal. “Alkali Metal.” Encyclopædia Britannica, Encyclopædia Britannica, Inc., 21 June 2017. English chemist Sir Humphry Davy was the first to isolate many of the alkaline earth metals including calcium, strontium, magnesium, and barium. Alkali metals and alkaline earth metals have many similar properties, but this article discusses mainly their differences. The name "alkaline earths" comes from an old name for the oxides of the elements. Alkaline earth metals are in the second group of the periodic table. The word earth was applied in old days to a metallic oxide and because the oxides of calcium, strontium and barium produced alkaline solutions in water and, therefore these metals are called the alkaline earth metals. 4. Because they form +2 ions that have very negative reduction potentials, large amounts of energy are needed to isolate them from their ores. All the elements in this group are denser than water. Alkaline earth metals are in the second group of the periodic table. Side by Side Comparison – Alkali Metals vs Alkaline Earth Metals in Tabular Form However, the other elements are denser than water. Alkaline earth metals are metals that have two valence electrons in their outermost shell. The alkaline earth metalsare all of the elements in the second column (column 2A) of the periodic table. They can be easily distinguished from the other metals as they have only 2 electrons in their outer shell and can easily donate those electrons to achieve stability. The alkaline earth metals (beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: 1. shiny 2. silvery-white 3. somewhat reactive metals at standard temperature and pressure 4. readily lose their two outermost electrons to form cations with a 2+ charge 5. low densities 6. low melting points 7. low boiling poi… The elements included in the group include radium, barium, strontium, calcium, magnesium and beryllium. And all alkaline earth metals have two outer electrons. Beryllium is sufficiently hard to scratch glass, but barium is only slightly harder than lead. They all occur in nature, but are only found in compounds and minerals, not in their elemental forms. Radium is formed from the decay of uranium. They have a gray-white lustre when freshly cut but tarnish readily in air, particularly the heavier members of the group. It is very radioactive and is dangerous to handle. Similar to alkaline metals, these elements also do not occur freely in … Alkaline earth metals are also known as Group II elements. Alkaline earth metals have stronger metallic bonds as compared to the alkali metals present in the same period. What are Alkaline Earth Metals Calcium plays an important role in helping us to build strong bones and magnesium is used to help regulate the body's temperature. Both alkali metals and alkaline earth metals are good electrical and heat conductors. They tend to form ionic bonds, except for beryllium which forms covalent bonds. Moreover, alkali metals are very soft and they can be cut with a sharp knife. Coming from Engineering cum Human Resource Development background, has over 10 years experience in content developmet and management. 4. Alkali metals are the elements present in the first group of the periodic table. As ions they have a charge of +2a. They are silvery, shiny, and relatively soft metals. Figure 01: Atomic Radius of Alkali and Alkali Earth Metals. 3. Radium, barium, and strontium have few industrial applications, while magnesium and calcium have many uses in manufacturing and industry. Group II elements include; Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba) and Radium (Ra). Calcium and magnesium are fourth and fifth in the reactivity series. Alkaline earth metals appear shiny, silvery-white and are found in the earth's crust. The alkaline earth metals are shiny, silvery-white, and somewhat reactive metals at standard temperature and pressure. Comparatively, alkali metals are more reactive than alkaline earth metals. Because the alkaline-earth metals have two electrons in their outer shell, they react easily with other elements and are found in nature only in compounds. Compare the Difference Between Similar Terms. All rights reserved. Summary. 5. Electronegativity of alkaline earth metals: The electro negativity values of alkaline earth metals are quite close to those of alkali metals, though slightly more. 3. Similar to alkaline metals, these elements also do not occur freely in nature and they are also very reactive. Alkaline-earth metal - Alkaline-earth metal - Physical and chemical behaviour: The alkaline-earth elements are highly metallic and are good conductors of electricity. 1. Same as alkali metals, these metals are also good conductors in heat and electricity. They become stable by gaining the electron configuration of noble gasses through the donation of their outermost electrons. They are any of the metallic elements belonging to Group 2 of the periodic table: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). Sometimes they explosively react with other substances. Alkali metals have the electronic configuration of [Noble gas] ns1 while Alkaline earth metals have, [Noble gas] ns2 electronic configuration. What Are the Properties of the Alkaline Earth Metals? Solved a ignment score 19 1 periodic table a atomic radius chemical science gate m sc what is the electronic configuration of alkaline earth metals group Solved Write The Outer Electron Configurations For A Alk CheggWhat Is The Electronic Configuration Of Alkaline Earth Metal QuoraIdentify The Generic Outer Electron Configuration For Alkaline Earth Metals Ns2np3… 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. Not found freely in nature. Group II elements include; Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba) and Radium (Ra). Alkaline earth metals are in the second group of the periodic table. The alkaline earth metals are the second most reactive family of elements. @media (max-width: 1171px) { .sidead300 { margin-left: -20px; } } The alkaline earth metals are the elements that correspond to group 2 of the modern periodic table. All of the alkaline earth metals except magnesium and strontium have at least one naturally occurring radioisotope. Alkaline Earth metals are very reactive because they readily give up their two valence electrons to achieve a full outer energy level, which is the most stable arrangement of electrons. Some characteristics of alkaline earth metals are: An oxidation number of +2 which makes them very reactive. Alkaline earth metals are good reducing agents that tend to form the +2 oxidation state. After some quick brainstorming and mish-mashing of names, the two concepts were combined to create the Frankenstein-creature we now call alkaline earth metals. The elements of this group are quite similar in their physical and chemical properties. The alkaline earth metals are the second group of metals on the periodic table. Similar with alkali metals, alkaline earth metal also have the properties of base, as opposed to an acid. 1. Like the alkali metals, the alkaline earth metals are so reactive that they are never found in elemental form in nature. Pure metals have a silver-grey color, but they tend to decolorize quickly when exposed to air because they form an oxide layer on the surface. “Alkaline Earth Metal.” Wikipedia, Wikimedia Foundation, 20 May 2018. Available here   The heterocyclic beryllole is the first antiaromatic molecule containing an alkaline earth metal in its π system. They are called alkaline because they form solutions with a pH greater than 7, making them bases or "alkaline.". The alkaline earth metals are the second group of metals on the periodic table.They are related to the Alkali metals, but they do not react as much because they need more energy to remove their two electrons, So they do not have to be stored in petrol.As ions they have a charge of +2a. The alkaline earth metals are in the second group of the periodic table. Calcium and magnesium are important for animal and plant life. All of these metals are commercially valuable. Alkali metals and the alkaline earth metals are the group I and group II elements in the periodic table respectively. Also, like the alkali metals, or indeed any other family on the periodic table, not all members of the alkali metal family are created equally in terms of their abundance on Earth or their usefulness to human life. 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