where is alkaline earth metals found?
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The alkaline earth metals are a group of elements in the periodic table. They are all in the second column of the periodic table. They are sometimes referred to as the group 2 elements.
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The alkali metals each have a single electron in the s orbital of their outer shell; they combine with a +1 valence. The alkaline earth metals have a full s orbital, with two electron, so they have a +2 valence.
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: any of the divalent strongly basic metals of group II of the periodic table comprising beryllium, magnesium, calcium, strontium, barium, and radium. — called also alkaline earth. — see Periodic Table.
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Alkaline-earth metal. ... Alkaline-earth metal, any of the six chemical elements that comprise Group 2 (IIa) of the periodic table. The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).
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Elements in this group are called alkaline Earth metals. These metals are silver or gray in color. They are relatively soft and low in density, although not as soft and lightweight as alkali metals.
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All of the alkaline earth metals, except magnesium and strontium, have at least one naturally occurring radioisotope: beryllium-7, beryllium-10, and calcium-41 are trace radioisotopes. Calcium-48 and barium-130 have very long half-lives and thus occur naturally. All isotopes of radium are radioactive.
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The lighter alkaline earth metals, such as magnesium and calcium, are very important in animal and plant physiology. You all know that calcium helps build your bones. Magnesium can be found in chlorophyll molecules.
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The alkaline earth metals (Be, Mg, Ca, Sr, Ba, and Ra) are the second most reactive metals in the periodic table, and, like the Group 1 metals, have increasing reactivity in the higher periods. Beryllium (Be) is the only alkaline earth metal that does not react with water or steam, even if metal is heated to red heat.
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Similarly, all the alkaline earth metals react with the heavier group 15 elements to form binary compounds such as phosphides and arsenides with the general formula M3Z2. Higher lattice energies cause the alkaline earth metals to be more reactive than the alkali metals toward group 15 elements.
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Alkali metals are the elements in group 1 of the periodic table. Alkaline earth metals are the elements in group 2 of the periodic table. ... The main difference between alkaline and alkali is that alkali metals have one valence electron, whereas alkaline earth metals have two valence electrons.
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They are silvery or gray in color. They are also relatively soft and low in density. 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.
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Reactions of Alkaline Earth Metals All the alkaline earth metals except beryllium also react with water to form strongly alkaline hydroxides which should be handled with great care.
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The elements in Group 2 (beryllium, magnesium, calcium, strontium, barium, and radium) are called the alkaline earth metals (Figure below). These elements have two valence electrons, both of which reside in the outermost s sublevel. The general electron configuration of all alkaline earth metals is ns2.
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Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).
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The alkaline earth metals are all of the elements in the second column (column 2A) of the periodic table. This group includes beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra). Alkaline earth metals have only two electrons in their outermost electron layer.
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Alkaline Earth Metals. The alkaline earth metals are the elements that correspond to group 2 of the modern periodic table. This group of elements includes beryllium, magnesium, calcium, strontium, barium, and radium. ... The general electronic configuration of these elements is ns2.
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It was not until later that scientists were able to separate the metallic, elemental forms from the oxides, but the name "alkaline earth" stuck. ... Group 2 elements are called alkaline earth metals because they form “alkaline solutions",hydroxides, when react with water and their oxides are found in earth crust...