Germanium Discovered Concentration

Germanium - Wikipedia

The highest concentration ever found was in Hartley coal ash with as much as 16% germanium [56] [57] The coal deposits near Xilinhaote , Inner Mongolia , …

It's Elemental - The Element Germanium

Germanium is pronounced as jer-MAY-ni-em History and Uses: First proposed to exist by Dmitri Mendeleyev in 1871 based on gaps in his newly created Periodic Table of Elements, germanium was discovered by the German chemist Clemens Winkler in the mineral argyrodite (Ag 8 GeS 6) in 1886

Germanium - Element information, properties and uses

Germanium was discovered by Clemens A Winkler at Freiberg, Germany, in 1886 Its existence had been predicted by Mendeleev who predicted its atomic weight would be about 71 and that its density around 55 g/cm 3

Germanium - Periodic Table of Elements and Chemistry

Germanium and the oxide are transparent to infrared radiation Germanium also has the unusual property that (like water) it expands as it freezes Four other elements expand when they freeze; silicon, bismuth, antimony and gallium Uses of Germanium The most common use of germanium is as a semiconductor

Who Discovered Germanium - wanttoknowit

Even in these minerals the concentration of germanium is quite low It is for this reason that it was discovered relatively late compared with other similar elements Let’s find out who discovered …

Germanium, Chemical Element - reaction, water, uses

Winkler discovered that the properties of germanium were very similar to those that Mendeleev had predicted 15 years earlier For example, Mendeleev thought element 32 would have a density of 55 grams per cubic centimeter The actual density for germanium is 547 grams per cubic centimeter

Germanium (Ge) - Chemical properties, Health and

Germanium Pure germanium is a hard, lustrous, gray-white, brittle metalloid It has a diamondlike crystalline structure and it is similar in chemical and physical properties to silicon

Germanium: Uses, Side Effects, Interactions, Dosage, and

Germanium is LIKELY SAFE when taken by mouth in amounts normally found in the diet A typical daily diet includes 04-34 mg of germanium A typical daily diet includes 04-34 mg of germanium

Germanium Facts (Atomic Number 32 or Ge) - ThoughtCo

Like germanium, the planet Neptune had recently been discovered from predictions from mathematical data The discovery of germanium filled a spot predicted by Mendeleev's periodic table Germanium took the place of the placeholder element eka-silicon

Germanium, Chemical Element - reaction, water, uses

Winkler discovered that the properties of germanium were very similar to those that Mendeleev had predicted 15 years earlier For example, Mendeleev thought element 32 would have a density of 55 grams per cubic centimeter The actual density for germanium is 547 grams per cubic centimeter

Who Discovered Germanium - wanttoknowit

Even in these minerals the concentration of germanium is quite low It is for this reason that it was discovered relatively late compared with other similar elements …

germanium | Properties, Uses, & Facts | Britannica

Trace quantities of germanium are found in certain zinc blendes, in sulfidic ores of copper and arsenic, and in coals, the latter possibly a consequence of the concentration of the element by plants of the Carboniferous Period in geologic history Certain present-day plants are …

Chemistry for Kids: Elements - Germanium

Germanium is the third element of the fourteenth column of the periodic table It is classified as a metalloidIt is similar in properties to the other metalloids near …

Germanium - Revolvy

Oct 08, 2011 · Like silicon, germanium naturally reacts and forms complexes with oxygen in nature Unlike silicon, it is too reactive to be found naturally on Earth in the free (elemental) state Because it seldom appears in high concentration, germanium was discovered comparatively late …

Germanium - Uses of Germanium & Properties of Germanium

Germanium, a chemical element places between silicon and tin in Group 14 of the periodic table A hard, gray-white, lustrous and brittle metalloid acts in properties between metals and nonmetals The element is mostly distributed in nature, but it’s too reactive to occur free

CONCENTRATION OF GERMANIUM IN THE ASH OF …

CONCENTRATION OF GERMANIUM IN THE ASH OF AMERICAN COALS A PROGRESS REPORT By Taisia Stadnichenko, K J Murata, Peter Zubovic, and Elizabeth L Hufschmidt Washington, D C, 1953 Free on application to the Geological Survey, Washington 25, D C

Germanium Facts, Symbol, Discovery, Properties, Uses

Who discovered it: The German chemist Clemens A Winkler is known to be the discoverer of germanium [1] When and How was it Discovered In September 1885, an unusual mineral ore was found by a miner who was working in the Himmelsfürst mine in the Freiberg district of Germany [1]

Germanium (Ge) Semiconductors - AZoM

Germanium is non-toxic It is a hard, lustrous, grayish-white metalloid chemically similar to its group neighbors, tin and silicon Germanium is mainly obtained from sphalerite but is also found in lead, silver and copper ores Clemens Winkler discovered germanium in 1886The name Germanium finds its origin from the latin word ‘Germania'

Germanium - an overview | ScienceDirect Topics

Germanium also increases the ionized impurity background concentration of epilayers grown in an MBE machine in which germanium has been previously evaporated [177] As a result of these effects, germanium is no longer commonly used during MBE growth

Germanium Concentrate | AMERICAN ELEMENTS

Preparation of germanium concentrate typically involves the removal of water from an germanium solution Germanium concentrate is advantageous for transportation since it reduces weight and volume A solution can be reproduced at the time of usage with the addition of a solvent

MENDELEEV’S PREDICTIONS FOR “EKA-SILICON”

MENDELEEV’S PREDICTIONS FOR “EKA-SILICON” Among the predictions made by Mendeleev were the existence, and the properties, of several undiscovered elements One of these elements was the element now called Germanium; Mendeleev called it “eka-silicon,” meaning “beyond silicon” on his table Chemical or physical property

Germanium - Scientific American

Germanium is not acted on by hydrochloric acid, but is easily dissolved in aqua regia Nitric acid converts it into a white oxide with liberation of the oxides of nitrogen

Germanium Can Take Transistors Where Silicon Can’t

Unfortunately, this technique does not work as well in germanium as it does in silicon; the material can’t withstand the high concentration of electron-donating dopants that would be needed to

Germanium Facts, Symbol, Discovery, Properties, Uses

Who discovered it: The German chemist Clemens A Winkler is known to be the discoverer of germanium [1] When and How was it Discovered In September 1885, an unusual mineral ore was found by a miner who was working in the Himmelsfürst mine in the Freiberg district of Germany [1]

Periodic Table Of The Elements Germanium | Encyclopedia

Germanium has chemical and physical properties similar to those of silicon It was predicted as an element ("eka-silicon") by Dimitri Mendeleev in 1871 from calculations made during the construction of his periodic table , and it was discovered by Clemens Winkler in 1886

When was Germanium discovered - scienceanswers

Germanium is an element on the Periodic Table of Elements, discovered by Germany Its symbol is Ge, atomic number is 32, its atomic mass is 7292 ( cf note 1 ), it is a metal … loid, and it is located in Group 14 and period 4 (That means that it has 2 electron …

Germanium – Properties and Applications

In 1886AD, Germanium was discovered by German chemist, Clemens Alexander Winkler In 1885, a new ore was found in a mine near Freiberg, Germany The ore contained silver and sulfur Winkler isolated a new element from the ore and named it as germanium The name germanium is derived from Germany, which is the native country of Winkler

Germanium

Germanium was discovered in 1886 by Clemins Winker Germanium's existence was predicted by Mendeleev in 1871 He predicted the existence of Germanium as ekasilicon It occurrence is 007% of the earth's crust In the element form it is a lustrous white, brittle metalloid

Germanium (Ge) | AMERICAN ELEMENTS

Germanium is a Block P, Group 14, Period 4 element The number of electrons in each of germanium's shells is 2, 8, 18, 4 and its electron configuration is [Ar] 3d 10 4s 2 4p 2 The germanium atom has a radius of 1225pm and its Van der Waals radius is 211pm In its elemental form, CAS 7440-56-4, germanium is a brittle grayish white semi-metallic element

germanium

Clemens Winkler, also a German chemist, discovered the element naturally in the silver sulfide ore argyrodite Germanium ranks fifty-fourth in order of abundance of the elements in the Earth's crust It can naturally be found in small quantities in the ores of silver, copper, and zinc

What is germanium? - Quora

Germanium is one of the metalloid in Group 14 on period 3 with the symbol Ge with 32 protons and 32 electrons with 41 neutrons with an electron configuration of 2–8–18–4 Germanium has an atomic weight of 73 atomic mass units It was discovered in 1886 by Clemens Winkler

Hall Coefficient of Germanium - Wooster Physics Snapshot

The Hall coefficient for the Germanium sample was found to be -(1907+0071)*10 -2 m 3 /C, and the number of carriers was found to be 386*10 20 +014*10 20 /m 3

Germanium Fragments 99999% (10 Troy Ounce) – Rare Metals USA

Pure germanium is a semiconductor with an appearance similar to elemental silicon Like silicon, germanium naturally reacts and forms complexes with oxygen in nature Because it seldom appears in high concentration, germanium was discovered comparatively late in the history of chemistry

Doping (semiconductor) - Wikipedia

where n 0 is the concentration of conducting electrons, p 0 is the electron hole concentration, and n i is the material's intrinsic carrier concentration The intrinsic carrier concentration varies between materials and is dependent on temperature

It's Elemental - The Element Gallium

Gallium is pronounced as GAL-ee-em History and Uses: First proposed to exist by Dmitri Mendeleyev in 1871 based on gaps in his newly created Periodic Table of Elements, gallium was discovered spectroscopically by the French chemist Paul-Émile Lecoq de Boisbaudran in 1875

Flerovium - Element information, properties and uses

Eka-silicon, for instance, is now called germanium and measured up well to Mendeleev's predictions Similarly, for a long time it was assumed that element 114 …

Germanium | Ge - PubChem

The accumulation of germanium by barley (Hordeum vulgare cv Arlvat) grown at various germanium and pH levels was investigated because germanium is an industrially important metal and bioaccumulation of germanium is a potentially useful means of concentrating this trace metal

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