Is cesium a heavy metal? Difference Between Cesium Isotope and Cesium Metal

No! Overview.

Cesium metal. It is the most reactive alkali metal.

When exposed to air, it will burn to produce orange cesium superoxide (CSO2), which will be replaced by water and will reach a total volume of 4% in a certain space (4% of the limit can occur). Cesium metal has been widely used in material manufacturing, aerospace and other fields due to its unique metal properties.

Physicochemical properties. Pure cesium is golden yellow, melting point, and liquid at room temperature. Cesium is chemically active, can spontaneously ignite in oxygen and air, and produces superoxide, which reacts particularly violently with water, and can cause ** at room temperature.

Cesium metal is the most reactive alkali metal, which will burn when exposed to air to form orange cesium superoxide (CSO2), which will be replaced by water to produce cesium hydroxide and hydrogen gas, reaching a total volume (4% of the limit can occur) in a certain space.

Biomedical effects.

Physiological studies have shown that cesium has the greatest effect on the disturbance of periodic changes in the heart compared to the effects of potassium and rubidium in various organs of small animals. Cesium can be used to study the phenomenon of hyperpolarization activation and the intrinsic regulation of ion channels in many cells. For example, the introduction of cesium triggers seizures in the nerves of the brain, and the mechanism is speculated to be that cesium blocks potassium channels in the glia, resulting in abnormal accumulation of potassium ions outside the cell, causing epilepsy.

Cesium salts in the fight against cancer.

It also has a certain effect. "High pH internal environment cancer treatment", this method is mainly to inject patients with a high dose of CSCL, and add vitamins as an adjunct**, by increasing the pH value in the cells.

to attenuate the growth cycle of cancer cells.

In addition, cesium isotopes.

Radiation can be used for malignant tumors.

It can promote DNA changes in tissue cells, chromosomal aberrations or breaks, and ionization of fluids to produce free radicals.

Eventually, the cells or their progeny will lose their viability, which can rupture or inhibit tumor growth.

At present, there are 108 known elements in the world, of which there are 90 kinds of metal elements, and when it comes to the most reactive metal, we have to mention cesium.

The most reactive metal in the world of chemical elements: cesium.

Cesium salt is stable, cesium salt is toxic, but the toxicity is not great, its toxicity lies in interfering with ion channels, CS is generally not considered to be a heavy metal, especially in medicine, medicine is usually said to be heavy metal poisoning (containing metalloids such as AS).

1.It is an important material for the manufacture of vacuum parts, photocells, etc., and is chemically used as a catalyst.

2.In nature, cesium salts are found in minerals, and a small amount of cesium chloride is found in carnallite. It is prepared by calcium chloride reduction with calcium at high temperature.

3.element uses.

In order to explore the universe, there must be a new, extremely fast means of transportation. Ordinary rockets and spaceships cannot reach such speeds, and at most they can only rush out of the Earth-Moon system; Only an "ion rocket" capable of flying hundreds of thousands of kilometers per hour can meet the requirements.

As we have said earlier, the outermost electrons of the cesium atom are extremely unstable and can be easily excited and radiated into positively charged cesium ions, so it is an ideal "fuel" for astronautical ion rocket engines.

The working principle of the cesium ion rocket is as follows: after the engine starts, a large amount of cesium vapor is generated, and the cesium vapor is "processed" by the ionizer and becomes positively charged cesium ions, and then accelerates to 150 kilometers per second under the action of the magnetic field, and is ejected from the nozzle, and at the same time gives a strong impetus to the ion rocket to push the rocket forward at a high altitude.

Calculations have shown that the thrust per unit weight of such cesium ions as propellants for space rockets is hundreds of times higher than that of liquid or solid fuel. This cesium-ion rocket can travel in space for a year or two or more!

There is a very rare metal, which is more expensive than **, about 1,000 yuan each, and it is not available for bought. Its texture is very soft, the hardness is very low, it is the easiest metal in the world to be cut, but the temper is very short-tempered, it will start to be natural when it touches the air, and it is even more direct when it meets water**. Although this character is a little unpleasant, it looks beautiful, the appearance is absolutely enough, with the luster of golden cesium, although it looks like **, but the melting point is very low, and it can be melted into liquid metal in the heart of the hand, this is cesium, a very lively metal.

It can only be packed into special dark cloths, which are made of silicate glass, because they cannot be exposed to the air, so they need to be filled with hydrogen, and they cannot be opened directly when they need to be tested, they need to be taken out in kerosene, and they must be very careful, once exposed to the air, they will be ** in an instant. However, although Cesium is very short-tempered, he is very afraid of kerosene, and once he comes into contact with kerosene, he will immediately lose his golden cesium coat and turn into a puddle of black soft mud. This is because kerosene contains impurities such as water and oxygen, which can cause cesium to be covered with a layer of oxide and peroxide, because the hardness is very low, cutting cesium in kerosene is like cutting butter imitation bridge, it does not require much effort at all.

But it's dangerous, if you throw a dark cloth with cesium on a damp wall, it will happen instantly**, and it will quickly oxidize and burn when exposed to the air. At the same time, the flame it burns is different from the ordinary flame, and this is because of the cesium ion. If you put it on a flammable paper towel, you will be able to tell the difference between the two flames more clearly.

At that time, the German scientist Robert Wilhelm himself and Gustav Robert Kirchhoff used this change in cesium to discover cesium.

A German scientist, Gustav Robert Kirchhoff, found out that he had just invented a spectrometer that could separate the light from the smile. So the two of them cooperated and developed a method for discovering gold and cesium. And the discovery of cesium is to make use of the method itself.

A bottle of mineral water from Sweden was placed on the flame of the Bunsen burner and the composition was analyzed with a spectrum analyzer. It found spectra of elements such as potassium, sodium, calcium, lithium, etc., in water, but there were also two blue cesium rays that were very close together. Through trial and error, they determined that it was a new alkali metal element and named it type C, which means cesium azure.

And although cesium is short-tempered, it will ** when it encounters water and air. But its usefulness is also very important. The definition of world time is determined by the time it takes for a cesium atom to orbit and move, and it has a wide range of applications in various high-tech industries such as medicine and aerospace.

The elemental element of this metal is a pale golden yellow, and then it is an active metal with a relatively low melting point, and it is generally distributed on land and in the sea.

This pure difference is a rotten rock species of golden yellow, low melting point of the active metal is very easy to oxidize in the air, and can react violently with the water hungry pants to produce hydrogen.

Cesium is a golden-yellow metal, belonging to a low melting point of the active metal, cesium is easy to be oxidized in the air hail clear gas, it can react violently with water to produce hydrogen and **, cesium has no elemental form in nature, cesium element in the form of salt this hole is distributed in the land and sea.

The laws of metallicity and non-metallicity of the periodic table are:1) In the same period, from left to right, the metallicity weakens and the non-metallic property increases. The metallicity of the same main group increases from top to bottom, and the non-metallic property decreases.

The most metallic is cesium, which is located in the lower left corner, and the most non-metallic is fluorine, which is located in the upper right corner.

2) The stronger the metallicity, the easier it is for the element to react with water or acid to replace hydrogen, and the corresponding most ** oxide hydrate is more alkaline. The stronger the non-metallic pie impulse, the easier it is to react with hydrogen, the more stable the gaseous hydride generated, and the more acidic the corresponding most oxide hydrate.

Determination of the metallicity of metallic elements:As far as the metal atom loses electrons, under certain conditions, the easier it is to lose electrons, the less energy it absorbs, and the more difficult it is to lose electrons, the more energy it absorbs, so the metallicity of metal elements can be judged according to the amount of energy absorbed by metal atoms when they lose electrons under the same conditions.

Cesium is the softest metal in the metal kingdom, soft as plasticine.

Normally, it can be cut arbitrarily with a knife, and cesium was first made in 1861 by the German chemist Bunsen. It is dressed in a silvery-white coat and has a lively nature, and if it is exposed to the air, it will immediately combine with oxygen to form a new substance, and the bright coat of cesium will also disappear. If you put it in the water, it will swim around on the surface of the water and burn, and shrink into small balls, and it may occur in serious cases**, the resulting liquid is also strongly corrosive, if the cesium burns, do not use water to extinguish the fire, otherwise the fire will burn more osmium-iridium alloy The larger the nib of the pen.

It is precisely because of the lively nature of cesium that metal cesium is made industrially.

This is not an easy task, and it requires forced means to disassemble it from other metal compounds. Artificially made cesium metal must be kept under strict care and "confined" in an airless environment. There are some very active electrons in the cesium atom, and people call these electrons free electrons.

When light hits the surface of cesium, these "mischievous" free electrons gain energy to escape from the surface. People take advantage of this feature to spray metal cesium on silver sheets to make various photocells. When a photocell is irradiated by light, an electric current is generated, and the stronger the light, the stronger the current generated.

This photocell can be used as an alarm device, can report distant fires, can also be used to "guard" warehouses, and can also be used to make highly sensitive astronomical instruments with cesium photocells. With the continuous deepening of people's research on cesium, the use of cesium will continue to be developed.

The most valuable property of cesium is that it is a metal with long "eyes" – it has excellent optoelectronic properties. As soon as cesium is irradiated by light, it will be excited and release electrons. People take advantage of this characteristic of them to spray metal cesium on silver sheets to make various photocells.

When the photocell is irradiated by light, it will produce photocurrent, and the stronger the light, the greater the photocurrent, which becomes the "eye" in automatic control. For example, if you install it in a steelmaking furnace, the photocurrent of the photocell varies depending on the brightness and darkness of the flame in the furnace, and the temperature can be calculated and automatically controlled. In addition, photocells are used in films, television, photometers, and many communication and automatic control equipment.

The most reactive metal in the world of chemical elements: cesium.

The cesium content standard book is sold as follows:

Cesium Detection Standard in Aquatic Products (GB T): The maximum allowable residue of cesium is milligram kilograms (mg kg). "Standard for the Detection of Radioactive Substances in Aquatic Products" (GB T): The maximum allowable residue of cesium is 1 milligram kilogram (mg kg).

USA: The U.S. Food and Drug Administration (FDA) has set the maximum allowable residual level for cesium to be 1 milligram kilogram (mg kg). European Union:

EU "Standard for the Detection of Radioactive Substances in Aquatic Products" (EU Regulation No.).853 2004) stipulates that the maximum state tremor permissible residue for cesium is 1 milligram kilogram (mg kg).

Caesium, element symbol CS, atomic number is 55, located in the sixth period, group ia, its elemental element is a light golden yellow active metal, low melting point, easy to be oxidized in the air, can react violently with water to produce hydrogen and **. Cesium has no elemental form in nature and is only rarely distributed in the form of salt on land and in the sea. Cesium is an important material for the manufacture of vacuum parts, light hole elbow tubes, etc.

The radionuclide CS-137 is one of the radioactive contamination leaked from the Fukushima Daiichi nuclear power plant in Japan. Cesium is located in the ia group of the sixth cycle and is a silvery-gold alkali metal that is very soft (it has the lowest hardness on the Mohs scale of all elements) and is malleable. Cesium metal is not radioactive, but cesium metal is a hazardous chemical, which is flammable and spontaneously combustible when wet.

Care should be taken when using it.

Summary. Hello, dear. We're happy to answer your <>

Cesium isotopes and cesium metal are two related but not identical concepts. Cesium isotopes refer to the different nuclei of the cesium element that have the same number of protons (both 55) but different neutron numbers and hence different mass numbers. Common cesium isotopes include cesium-133 and cesium-137.

Cesium metal refers to the actual material composed of the element cesium, which is an alkali metal with a low melting point and high reactivity. Cesium metal is solid at room temperature and has a silvery-white appearance, but it melts quickly when heated. Cesium isotopes refer to the different karyotypes of the cesium element, while metal cesium refers to the actual material form of the cesium element.

The cesium isotope is one of the karyotypes contained in the metal cesium.

Difference Between Cesium Isotope and Cesium Metal

Hello, dear. We're happy to answer your <>

Cesium isotopes and cesium metal are two related but not identical concepts. Cesium isotopes refer to the different nuclei of the cesium element that have the same number of protons (both 55) but different neutron numbers and hence different mass numbers. Common cesium isotopes include cesium-133 and cesium-137.

Cesium metal refers to the actual material composed of the element cesium, which is an alkali metal with a low melting point and high reactivity. Cesium metal is solid at room temperature and has a silvery-white appearance, but it will quickly melt when heated. Cesium isotopes refer to the different karyotypes of the cesium element, while metal cesium refers to the actual material form of the cesium element.

Cesium isotope void crude is one of the karyotypes contained in cesium metal.

What are the factories for the production of cesium isotope 133 in our country.

Pro, the plants that produce the cesium isotope 133 are usually in the field of nuclear energy or nuclear technology, and are usually operated by ** or private entities.