mn has low melting point?
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If u look at values, Mn has lower value among other elements of the period. The other reason is very obvious, the half filled d orbital electrons are very tightly bound to the nucleus. ... Therefore, Mn has less melting point inspite of having 5 unpaired d electrons.
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Technetium is a silver-gray metal with a melting point of 2,200°C (4,000°F) and a density of 11.5 grams per cubic centimeter.
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Dysprosium has a metallic appearance with a shiny silver luster. The metal is so soft it is easily cut with a knife. It has a melting point of 1,407°C (2,565°F) and a boiling point of about 2,300°C (about 4,200°F). The density is 8.54 grams per cubic centimeter.
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Neon has a melting point of ‑248.59 C (‑415.46 F) and a boiling point of ‑246.08 C (‑410.94 F). Solid neon forms a crystal with a closely packed cubic structure. Because of its stable octet, the electronegativity and electron affinity of neon approaches zero.
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Manganese is a pinkinsh-gray, chemically active element. It is a hard metal and is very brittle. It is hard to melt, but easily oxidized. Manganese is reactive when pure, and as a powder it will burn in oxygen, it reacts with water (it rusts like iron) and dissolves in dilute acids.
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Thus, you can see that oxidizing effect of KMnO4 is maximum in acidic medium and least in basic medium as in acidic medium the reduction in oxidation state of Mn is max while it is the least in basic medium. Hence, acidic medium is used when you want strong oxidization and basic when very mild oxidization is required.
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The compound manganese(II) nitrate, Mn(NO3)2 is soluble in water.
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Mu-metal typically has relative permeability values of 80,000–100,000 compared to several thousand for ordinary steel. It is a "soft" ferromagnetic material; it has low magnetic anisotropy and magnetostriction, giving it a low coercivity so that it saturates at low magnetic fields.
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['Color : Silver-white.', 'Phase : Solid.', 'Melting point : Melting point of 63°C (145°F) - very low for a metal.', 'Color : Silvery-white metal.', 'Density : Less than water.']
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The presence of impurities in a substance results in a lower melting point due to a process called melting point depression. Melting point depression is the reason why adding salt to frozen streets helps to melt the ice. Melting point depression occurs due to the nature of a material's solid state.
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Manganese. Manganese is a pinkinsh-gray, chemically active element. It is a hard metal and is very brittle.
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A metal such as lead which has a low melting point and is relatively easily compressed, expands a great deal for a given rise in temperature. In order to compare the abilities of different solids to expand on heating it is necessary to refer to a table of coefficients of linear expansion.
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Physical properties Lithium is a very soft, silvery metal. It has a melting point of 180.54°C (356.97°F) and a boiling point of about 1,335°C (2,435°F). Its density is 0.534 grams per cubic centimeter. By comparison, the density of water is 1.000 grams per cubic centimeter.
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Hint for Naming MnCl2 Mn is a transition metal and Cl is a non-metal. This is an ionic compound. Name the metal as it appears on the Periodic Table.
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Transition Metals So the valence electrons for a transition metal are the ns and (n-1)d electrons. This means that manganese (Mn) has the electron configuration [Ar]4s²3d⁵ and 7 valence electrons.
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Basic Physical Properties of Steel Steel has a density of 7,850 kg/m3, making it 7.85 times as dense as water. Its melting point of 1,510 C is higher than that of most metals. In comparison, the melting point of bronze is 1,040 C, that of copper is 1,083 C, that of cast iron is 1,300 C, and that of nickel is 1,453 C.
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['Lithium (Li) is the lightest metal and the least dense solid element. ... ', 'Beryllium (Be) has one of the highest melting points of all the light metals.']