Samario
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Samarium is a silvery metal that readily oxidizes in air. It is a lanthanide element with an atomic mass of 150.36 u that typically assumes an oxidation state of +3. Samarium has no significant biological role, is only slightly toxic, and its compounds are commonly used as reducing agents in chemical synthesis.
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Samario– Samarium
Mass: 150,36 u
[Xe] 6s2
4f6
Melting point: 1345 K
Boiling point: 2067 K
Density: 7,52 g·cm−3
Discovery: Lecoq de Boisbaudran
It is a moderately hard silvery metal that readily oxidizes
in air. Being a typical member of the lanthanide series,
samarium usually assumes the oxidation state +3. The last
compound is a common reducing agent in chemical synthesis.
Samarium has no significant biological role and is only slightly
toxic.](https://image.slidesharecdn.com/samario-130512053512-phpapp02/85/Samario-1-320.jpg)
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Ununoctium (Uuo) is a synthetic element with atomic number 118, atomic mass of 244.06, and chemical symbol Uuo. It is predicted to be a solid with a boiling point of 320°C and density of 13.65 kg/m3. Robert Smola czukń is credited with discovering the element through experiments conducted at the Joint Institute for Nuclear Research.
Titatnium
Titanium is a transition metal with the symbol Ti that has a low density and silver color. It has a melting point of 1941 K and boiling point of 3560 K. Titanium is found in many minerals deposits like rutile and ilmenite that are widely distributed in the Earth's crust and lithosphere, and it is also found in living things, rocks, water, and soil.
Magnesio
Magnesium is the fourth most common element in the Earth, making up 13% of the planet's mass and a large fraction of the mantle. It has an atomic mass of 24.3247u, a melting point of 923K, and a boiling point of 1363K. Magnesium has a common oxidation state of +2, is an alkaline earth metal, and the third most abundant dissolved element in seawater due to its high solubility.
Francio
Francium is a highly radioactive alkali metal that was discovered in 1939 and is the second least abundant element in nature. It has only one electron in its valence shell like other alkali metals and decays into astatine, radium, and radon. Francium has a melting point of 300K and boiling point of 950K with a density of 1870 kg/m3, but there are no commercial applications due to its scarcity and instability, being only used for research in biology and atomic structure.
Fermio
Fermium is an artificial radioactive element discovered in 1952 through nuclear transmutation of lighter elements. It has no stable isotopes and the longest lived isotope, fermium-257, has a half-life of around 100 days. Fermium-258 has an extremely short half-life of 0.38 milliseconds, suggesting an instability in elements around this mass number in the periodic table.
Azufre
Sulfur is a chemical element with the symbol S and atomic number 16. It has a melting point of 388.36K and boiling point of 717.87K. Sulfur is found in native form in volcanic regions and forms sulfides and sulfates, and is necessary for protein synthesis in living organisms. It is mainly used as a fertilizer but also in the manufacture of gunpowder, laxatives, matches, and insecticides.
Astato
Astatine is a radioactive chemical element that occurs on Earth only through the radioactive decay of heavier elements. It has no stable isotopes, with astatine-210 being the most stable isotope. Observed properties of astatine are consistent with it being a heavier analog of the element iodine.
Transferencia de electrones quimica
El documento trata sobre reacciones redox y procesos electroquímicos. Explica la corrosión del hierro y técnicas para paliarla como el pasivado y recubrimientos. También describe tipos de pilas como la leclanché, de botón y recargables, mencionando sus componentes. Por último, detalla procesos metalúrgicos e industriales como la electrolisis del NaCl y Al2O3 para obtener cloro y aluminio.
Transferencia de electrones quimica
El documento describe diferentes procesos redox de importancia industrial y tecnológica, incluyendo la corrosión del hierro, técnicas para prevenirla como el pasivado y recubrimientos, pilas como la leclanché y alcalinas, procesos electrolíticos para obtener metales como el aluminio y sodio, y recubrimientos por electrodeposición como la galvanostegia y galvanoplastia.
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Samario
- 1. 62 Samario– Samarium Mass: 150,36 u [Xe] 6s2 4f6 Melting point: 1345 K Boiling point: 2067 K Density: 7,52 g·cm−3 Discovery: Lecoq de Boisbaudran It is a moderately hard silvery metal that readily oxidizes in air. Being a typical member of the lanthanide series, samarium usually assumes the oxidation state +3. The last compound is a common reducing agent in chemical synthesis. Samarium has no significant biological role and is only slightly toxic.