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Properties: Periodic group main group (alkaline earth metal) elements. Atomic number 56.
Stable isotopes: 130, 132, 134, 135, 136, 137, 138. Atomic weight.
Silvery-white metal. Slightly shiny. Density.
Melting point 710. The boiling point is about 1600. Valence +2.
The chemical properties are quite reactive, easy to oxidize, and should be stored in oil. It can decompose water to produce hydroxides and hydrogen. It is burned in oxygen at high temperatures to produce barium peroxide (BOO2).
It dissolves in acid to form salts. Barium salts are toxic except for barium sulfate! It is used to make barium salts, alloys, fireworks, nuclear reactors, etc., and is also an excellent oxygen scavenger when refining copper.
Barite and barium carbonate are found in nature. It can be prepared by electrolysis of molten barium chloride in the presence of ammonium chloride.
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Silvery-white metal, slightly shiny, yellow-green flame color, malleable. Density gram cm3. Melting point 725 .
Boiling point 1640 . Valence +2. Ionization energy electron volts.
The chemical properties are quite reactive, can react with most non-metals, and burn at high temperatures and oxygen to produce barium peroxide. Easy to oxidize, can react with water to generate hydroxides and hydrogen; Soluble in acid, produce salts, barium salts are toxic except for barium sulfate. The order of metal activity is between sodium and magnesium.
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Episode 6: What are the chemical properties of a substance: This lesson introduces the definition of the chemical properties of a substance through three experiments: "iron rusting", "candle burning", and "copper sulfate reacts with sodium hydroxide". The properties of matter that manifest themselves in chemical changes are called chemical properties.
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BA is a barium, alkaline earth metal element, the chemical element symbol BA, periodic table.
The middle A group sixth cycle element is a soft alkaline earth metal with a silvery-white luster, and is the most reactive element of alkaline earth metal. The name of the element ** is derived from the Greek word barys), which originally meant "heavy".
Due to the chemical nature of barium.
It is very lively and has never been found in nature. The most common mineral found in nature is barium.
barium sulfate) and barium carbonate (barium carbonate), both of which are insoluble in water. Barium was recognized as a new element in 1774, but was not classified as a metallic element until 1808, shortly after the invention of electrolysis.
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Barium, alkaline earth metal element, chemical element symbol BA, the sixth periodic element of group A in the periodic table, is a soft alkaline earth metal with silvery-white luster, and is the most active element in alkaline earth metal. The name of the element ** is derived from the Greek word barys), which originally meant "heavy".
The chemical properties of barium are very reactive, and no barium elemental substances are found in nature. Barium is a common mineral in nature is barite (barium sulfate) and barite (barium carbonate), both of which are insoluble in water. Barium was identified as a new element in 1774, but it was not until 1808, shortly after the invention of electrolysis, that it was classified as a metallic element.
Barium compounds are used to make green color in pyrotechnics (based on the principle of flame color reaction).
Barium, like other alkaline earth metals, is found everywhere on Earth: it is abundant in the upper part of the earth's crust, and the average in the earth's crust is. Barium is mainly found in the form of barite and in the form of sulfate or carbonate.
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1. BA(NO3)2 is the chemical name of barium nitrate.
2. Barium nitrate, chemical formula BA(NO3)2, molecular weight. Density, soluble in water, insoluble in ethanol. Barium nitrate is a cubic crystal with no large chain color change or white gloss, which is slightly hygroscopic, has strong oxidation, combustion, and toxicity.
When heating, oxygen is liberated, which has strong oxidizing properties, and can cause combustion or collision with sulfur, phosphorus, and organic matter. The melting point is 592, and the temperature is higher than that of decomposition. It burns with a green flame.
It is used as an oxidant and analytical reagent. It is used to make barium salt, signal flares and fireworks, and is also used to make ceramic glaze, explosives, medicine, etc. It is prepared by the reaction of nitric acid with barium hydroxide.
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There is no such thing as a slippery good substance.
It is to make if it is not lead bai2 barium iodide.
Hope. <>
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BA is the barium element No. 56 in the periodic table, and its position in the periodic table is: the sixth period, the second main group.
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