What is the least dense metal? What is the densest metal?

Element name: Lithium.

Elemental atomic weight:

Element Type: Metal.

Discovered by: Alferdeson Date of discovery: 1817.

Discovery process: Hydrogen is found in gases resulting from the interaction of metals with acids. In 1817, Alferdsson of Sweden first discovered lithium in the analysis of petalite feldspar.

Element Description: Silvery-white metal. Density gram cm3. Melting point.

Boiling point 1317. is the lightest metal. It can react with a large number of inorganic reagents and organic reagents.

The reaction with water is very violent. It is easy to react with hydrogen at about 500, and is the only alkali metal that can generate hydride that is stable enough to melt without decomposing, and ionization energy electron volts, which can be combined with oxygen, nitrogen, sulfur, etc., and is the only alkali metal that reacts with nitrogen at room temperature to form lithium nitride (Li3N). Because it is susceptible to oxidation and darkening, it should be stored in liquid paraffin.

Elemental use: Tritium can be obtained by placing an isotope (6li) with mass 6 in an atomic reactor and irradiating it with neutrons. Tritium can be used for thermonuclear reactions and has an important use. Lithium is mainly used as a thickener in grease in the form of lithium stearate.

This lubricant combines high water resistance, high temperature resistance and good low temperature properties. Lithium is used in ceramic products to act as a co-solvent. It is also used as a deoxidizer or dechlorinator in the metallurgical industry, as well as lead-based bearing alloys.

Lithium is also an important component of beryllium, magnesium, and aluminum light alloys.

Elemental Aids:

Lithium is another alkaline gold element discovered after potassium and sodium. It was Alfetersen, a student of the Swedish chemist Betsilius, who discovered it. In 1817, while analyzing hefeldspar, he finally discovered a new metal, which Berzirius named lithium, and the element symbol was li.

The word comes from the Greek word lithos (stone).

The year after the discovery of lithium, it was re-analyzed and confirmed by the French chemist Faucland.

Lithium is much less abundant in the earth's crust than potassium and sodium, and its compounds are rare, which is an inevitable factor in its later discovery than potassium and sodium.

At room temperature and pressure, the most dense metal in nature on the earth is "osmium", with a density of 76 atomic numbers in the periodic table of chemical elements, and the symbol is os, which was first discovered in 1804, and this metal is uncommon.

The melting point of osmium is higher, can reach 3045, and the melting point of tungsten is 3400, osmium is very small in nature, equivalent to 1/10,000 in the earth's crust, it is associated with iridium to form associated ore, after this metal is refined, it is fused with other metals to form a very high hardness and very sharp alloy material, such as a hospital scalpel.

Properties and applications of "Osmium":

Osmium metal is very stable in air, and powdered osmium is susceptible to oxidation. Concentrated nitric acid, concentrated sulfuric acid, and sodium hypochlorite solutions can all oxidize it. It reacts easily with oxygen at room temperature to form osmium oxide (OSO2), and when heated, it can produce osmium tetroxide, which is volatile and highly toxic.

Osmium can be used as a catalyst in industry, and when using osmium as a catalyst in ammonia synthesis or hydrogenation reactions, high conversion rates can be obtained at not too high temperatures. If a little osmium is mixed with platinum, it can be made into a hard and sharp osmium-platinum alloy scalpel.

The above content reference:

The densest metal in the world, or one of the platinum group metal members, do you know what it is?

Metal type.

of the most nature. Osmium is the most dense (at 25 is.

Silver is the most thermally conductive.

Platinum ductility is the most prominent.

The gold malleability is the best.

Chromium hardness is the highest (

Tungsten has the highest melting point (3410).

The density of the metals is arranged in order:Potassium. Sodium.

Calcium. Magnesium. Aluminium.

Titanium. Chromium. Manganese.

Iron. Copper. Silver.

LeadMercury.

Density is a physical quantity with the symbol . We usually use density to describe the mass of a substance per unit volume. This concept is also often used in other natural sciences such as chemistry, materials science, etc.

Density reflects a property of the substance itself, and it can therefore be affected by external factors. Generally speaking, the main physical quantities that affect the density of matter are pressure and temperature.

The best of metal1. The most dense metal - osmium.

2. The least dense metal - lithium.

3. The most abundant metal in the earth's crust - aluminum.

4. The most abundant metal in the human body - calcium.

Iron is the metal with the highest output in 5 years.

6. The hardest metal - chromium.

7. The metal with the best conductivity - silver.

8. The metal with the highest melting point - tungsten.

9. The metal with the lowest melting point - mercury.

10. The most metallic metal - cesium.

11. The most malleable metal - gold.

12 The most expensive metal — californium.

The least dense metallic element in metals is lithium (Li).

Lithium metal. The element symbol li, atomic number 3 in the periodic table, is a group of metal elements of the IA group. The density is grams of cubic centimeters. Lithium is a silvery-white alkali metal element that is soft and susceptible to oxidation and darkening, and is the lightest of all metal elements.

Compared to other alkali metals, lithium has the least compressibility, the highest hardness, and the highest melting point. The chemical properties of lithium metal are very active, and under certain conditions, it can react with most non-metals except for rare gases, but it is not as easy as other alkali metals. Lithium is also the only alkali metal element that reacts with nitrogen at room temperature.

Lithium battery. Lithium is more abundant in nature, ranking 27th, and its content in the earth's crust is about. Lithium is also widely used, involving pure acacia and batteries, ceramics, glass, lubricants, refrigerants, nuclear industry and optoelectronics.

The least dense metallic element in metals is lithium (Li).

It is a silvery-white metallic element with a soft texture. It is used in atomic reactors, light alloys and batteries.

Lithium and its compounds are not as typical as other alkali metals, because lithium has a high charge density and a stable helium-type double electron shell, which makes lithium easily polarized by other molecules or ions, but not easily polarized itself. This affects the stability of it and its compounds.

Since the electrode potential is the most negative, lithium is the most metallic active of the known elements, including radioactive elements (note that it is not metallic, the most metallic of the known elements is cesium).

In August 2018, a team led by researchers from the National Astronomical Observatories of the Chinese Academy of Sciences relied on Lamost's finger to present a peculiar celestial object, whose lithium content is about 3,000 times that of similar objects, and it is the star with the highest lithium abundance known to mankind.

Osmium, platinum, mercury.

Lead, silver, copper, iron, manganese, chromium, titanium, aluminum.

Magnesium, calcium, sodium, potassium. Lithium** is denser than lead. The densest metal element is white gold.

White Gold**: Lead: The softest metal: Mercury, i.e. mercury, is liquid at room temperature.

The hardest metal: chromium, 9 on the Mohs scale.

The densest metal: osmium, density.

Least dense metal: lithium, density.