what are chemical properties of mg?
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Magnesium. Chemical element, metallic, symbol Mg, situated in group IIa in the periodic table, atomic number: 12, atomic weight: 24,312. Magnesium is silvery white and very light. Its relative density is 1,74 and it's density 1740 kg/m3 (0.063 lb/in3 or 108.6 lb/ft3).
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The formula weight of Mg(NO3)2 is 148.3148 g/mol AMU. This compound contains one magnesium atom, two nitrogen atoms and six oxygen atoms.
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['Normally contains no fossils.', 'Rarely reacts with acid.', 'Usually has no layering.', 'Usually made of two or more minerals.', 'May be light or dark colored.', 'Usually made of mineral crystals of different sizes.', 'Sometimes has openings or glass fibers.']
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Alkaline earth metals react with halogens and (except for beryllium) with water and oxygen. Magnesium, being less reactive, reacts only at higher temperatures than the other alkaline earth metals. Radium is radioactive, so its chemical properties are difficult to study.
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The most common and stable type of magnesium atom found in nature has 12 protons, 12 neutrons, and 12 electrons (which have a negative charge). Atoms of the same element with different neutron counts are known as isotopes.
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For example, one atom of magnesium weighs 24.31 amu (atomic mass units). However, one mole of magnesium weighs 24.31 g. (Moles were planned that way!) Since one mole of MgCl2 consists of one mole of magnesium and two moles of chlorine, the mass of one mole of MgCl2 must be the sum of the masses of the elements.
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['Chemical composition.', 'Atomic bonding.', 'Corrosion resistance.', 'Acidity or Alkalinity.']
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Solubility: none known, decomposes in water and alcoholic solvents. Form Supplied in: greenish/yellow solid. Handling, Storage, and Precautions: exposure to air will result in decomposition to magnesium oxide (characterized by white solid). Incompatible with strong bases and acids.
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['Atomic Number: 20.', 'Atomic Weight: 40.078.', 'Melting Point: 1115 K (842°C or 1548°F)', 'Boiling Point: 1757 K (1484°C or 2703°F)', 'Density: 1.54 grams per cubic centimeter.', 'Phase at Room Temperature: Solid.', 'Element Classification: Metal.', 'Period Number: 4.']
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BRIAN M. Jackie Shlecter · Christopher P. Magnesium has two valence electrons. Magnesium is element 12 and belongs to Group 2 of the Periodic Table.
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As saying in the question, there are only two 3s electrons in the outer shell of magnesium. They should be paired up and give rise to a diamagnetic behavior. However in many resources, magnesium is considered as a paramagnetic material.
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Number of neutrons differ between isotopes. When Mg is Mg2+ it loses 2 electrons from the valence shell. That means it has only 10 electrons. Atomic number is 12 meaning there are 12 protons and electrons.
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These include: color, streak, hardness, luster, diaphaneity, specific gravity, cleavage, fracture, magnetism, solubility, and many more. These physical properties are useful for identifying minerals. However, they are much more important in determining the potential industrial uses of the mineral.
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Answer and Explanation: Magnesium has 2 valence electrons. For the main group elements (not transition metals), the group number tells us the number of valence electrons in...
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These include: color, streak, hardness, luster, diaphaneity, specific gravity, cleavage, fracture, magnetism, solubility, and many more. These physical properties are useful for identifying minerals.
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['Metallic Character.', 'Melting and Boiling Point.', 'Atomic (Covalent) and Ionic Radii.', 'The ionization energy (IE)', 'Colour.', 'Formation of Alloys.', 'Interstitial Compounds.', 'Variable Oxidation State.']
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['density.', 'melting point.', 'thermal conductivity.', 'electrical conductivity (resistivity)', 'thermal expansion.', 'corrosion resistance.']