What is the melting point for germanium?
The melting point of germanium is approximately 938 degrees Celsius.
Why was the discovery of germanium important for Mendeleev's table?
The discovery of germanium was important for Mendeleev's periodic table because its properties matched the gaps he had predicted in his table. This provided evidence for the periodicity of elements and the accuracy of Mendeleev's arrangement. Germanium's discovery also helped validate the periodic law which states that the properties of elements are periodic functions of their atomic numbers.
a metalloid in the carbon group and is chemically similar to silicon
Where was the element germanium discovered?
Germanium was discovered by chemist Clemens Winkler in 1886 in Freiberg, Germany. He isolated germanium from a sample of the mineral argyrodite.
Does germanium oxide dissolve in water?
Germanium oxide is insoluble in water due to its high lattice energy and strong intermolecular forces between germanium and oxygen ions. It would mostly remain in a solid state in water, although a very small amount may react to form a weakly acidic solution.
Germanium is located in group 14 of the periodic table. It shares this group with carbon, silicon, tin, and lead. Group 14 elements are also known as the carbon group.
"http://wiki.answers.com/Q/Is_germanium_a_mineral" No germanium is a metal....
What is the formula for germanium oxide?
chemical formula is GeO2. Its other names are germanic acid, G-15, and ACC10380. It forms as a passivation layer on pure germanium in contact with atmospheric oxygen.
What forms when Hydrofluoric acid reacts with solid germanium dioxide?
When hydrofluoric acid reacts with solid germanium dioxide, germanium tetrafluoride (GeF4) is formed along with water. This reaction can be represented by the following chemical equation: GeO2 + 4HF → GeF4 + 2H2O.
How is germanium separated from other materials found within it?
Germanium is produced mainly from sphalerite a zinc ore, but recent work indicates fly ash from coal burning is a rich source.
Once collected the crude germanium ingots are purified by zone refining, a process that mets a cross sectional area of the ingot allowing the impurities to concentrate in the melt while the pure germanium is allowed to resolidify in the cooling material. The melted area is moved along the ingot until the last meted material contains all the impurities
What is the electron configuration notation for germanium?
The electron configuration notation for germanium (Ge) is [Ar] 3d10 4s2 4p2. This notation represents the distribution of electrons in the energy levels and sublevels of germanium's atomic structure.
Is germanium a good conductor of heat?
Germanium is a semiconductor, it means that electrons are relatively strongly attached to nuclei. As result its thermal properties change. Generally semiconductors have worse thermoconductivity than metals but better than insulators.
What 2 molecules contain germanium?
Two molecules that contain germanium are germanium dioxide (GeO2) and germane (GeH4). Germanium dioxide is used in the production of optical materials, while germane is a toxic gas used in the semiconductor industry for the deposition of germanium-containing thin films.
Germanium is the largest of the two. It has a larger atomic mass.
What is the Lewis structure of germanium chloride?
The Lewis structure of germanium chloride, GeCl4, consists of a germanium atom bonded to four chlorine atoms. The germanium atom has four lone pairs, while each chlorine atom contributes one lone pair. The structure follows the octet rule, and each atom has a complete valence shell.
If you remove two protons from a germanium atom what do you call it?
If you remove two protons from a germanium atom, it would become a gallium atom. Gallium has atomic number 31, while germanium has atomic number 32. By removing two protons, the atomic number decreases by two, hence the change to gallium.
Maximum spectral response of the germanium and silicon?
Germanium has a maximum spectral response at around 1.8 µm wavelength, while silicon's maximum spectral response is at around 1.1 µm wavelength.
Does germanium emit negative ions?
Yes, germanium can emit negative ions when exposed to certain conditions, such as high humidity or heat. These negative ions are believed to have potential health benefits, including promoting balance and neutralizing free radicals in the body.
What are the disadvantages of organic semiconductor compare to silicon germanium?
Organic semiconductors have advantages over inorganic semiconductors in a few areas. First, conductive polymer devices can be fabricated at room temperatures and conditions and can be literally "printed" to make a circuit. Fabrication processes differences also make it possible to make complex organic polymer displays more easily than equivalent inorganic displays. This is convenient to make (e.g.) visual displays. They are also useful in energy-storage application. Their main draw-backs are first, that organic polymer electronic devices tend to be much slower than silicon devices. Further, organic light-emiting diodes tend to have limited life spans (2000 hours or so). So their main uses are for phone and car radio displays, where the device will likely be replaced before it reaches the limit of its life.
Germanium is commonly used in the production of semiconductors for electronic devices such as transistors and diodes. It is also used in infrared optics and in some types of solar panels. Additionally, germanium is used in some types of fiber optics for its low optical dispersion properties.
The Maximum spectral response of the germanium and silicon is in the?
The maximum spectral response of germanium is in the infrared region, while the maximum spectral response of silicon is in the visible light region. Germanium has a broader spectral response range compared to silicon.
Is germanium a good conductor of electricity?
Germanium is a semiconductor, which means its conductivity falls between that of a conductor and an insulator. It is not as good a conductor as metals like copper, but it can conduct electricity under certain conditions.
Where did the name germanium come from?
The name Germanium comes from the Latin word "Germania," which means Germany. The element was named after Germany because it was first discovered in 1886 by a German chemist, Clemens Winkler.