what are alkali metals class 10?
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In the periodic table, the alkali metals are a group or column containing the chemical elements such as lithium (Li), sodium (Na), rubidium (Rb), potassium (K), francium (Fr) and Caesium (Cs). ... All the alkali metals react with water, with the heavier alkali metals reacting more overwhelmingly than the lighter ones.
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The Group 2 alkaline earth metals include Beryllium, Magnesium, Calcium, Barium, Strontium and Radium and are soft, silver metals that are less metallic in character than the Group 1 Alkali Metals.
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Group 1: Reactivity of Alkali Metals. Alkali metals are among the most reactive metals. This is due in part to their larger atomic radii and low ionization energies. They tend to donate their electrons in reactions and have an oxidation state of +1.
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Each alkali metal atom has a single electron in its outermost shell. This valence electron is much more weakly bound than those in inner shells. As a result, the alkali metals tend to form singly charged positive ions (cations) when they react with nonmetals.
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The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). ... The alkali metals are all shiny, soft, highly reactive metals at standard temperature and pressure and readily lose their outermost electron to form cations with charge +1.
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['Group 1: alkali metals.', 'Group 2: alkaline earth metals.', 'Group 11: coinage metals (not an IUPAC approved name)', 'Group 15: pnictogens (not an IUPAC approved name)', 'Group 16: chalcogens.', 'Group 17: halogens.', 'Group 18: noble gases.']
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Alkali metals are known for being some of the most reactive metals. This is due in part to their larger atomic radii and low ionization energies. They tend to donate their electrons in reactions and often have an oxidation state of +1. These metals are characterized as being extremely soft and silvery in color.
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Alkali metal, any of the six chemical elements that make up Group 1 (Ia) of the periodic table—namely, lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). The alkali metals are so called because reaction with water forms alkalies (i.e., strong bases capable of neutralizing acids).
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The alkali metals, found in group 1 of the periodic table, are highly reactive metals that do not occur freely in nature. ... As with all metals, the alkali metals are malleable, ductile, and are good conductors of heat and electricity. The alkali metals are softer than most other metals.
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Potassium. Potassium is the fourth element in the first column of the periodic table. It is classified as an alkali metal. Potassium atoms have 19 electrons and 19 protons with one valence electron in the outer shell.
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Group 1 – the alkali metals. The Group 1 elements are called the alkali metals. They are placed in the vertical column on the left-hand side of the periodic table . All the Group 1 elements are very reactive .
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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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Alkali metals are silvery, soft, and not very dense. They can easily be cut with a butter knife, and cesium can even melt in the palm of your hand. They have low melting points and are incredibly reactive--so reactive that they must be stored in special solutions or containers to prevent an unintended reaction.
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Sodium is by far the most important alkali metal in terms of industrial use. The metal is employed in the reduction of organic compounds and in the preparation of many commercial compounds. As a free metal, it is used as a heat-transfer fluid in some nuclear reactors.
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The melting points of the alkali metals as a group are lower than those of any other nongaseous group of the periodic table, ranging between 179 °C (354 °F) for lithium and 28.5 °C (83.3 °F) for cesium. Among the metallic elements, only mercury has a lower melting point (−38.9 °C, or −38.02 °F) than cesium.
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Group 1 - the alkali metals. The Group 1 elements in the periodic table are known as the alkali metals. They include lithium, sodium and potassium, which all react vigorously with water to produce an alkaline solution.
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Alkali metal, any of the six chemical elements that make up Group 1 (Ia) of the periodic table—namely, lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).