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Germanium

Germanium (Ge) is a metalloid semiconductor. It is commonly used in optics and electronic circuitry.

542 Questions

Why we can't use silicon and germanium in laser diode?

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Silicon and germanium are indirect bandgap materials, which means they are not efficient in emitting light when an electric current passes through them. Laser diodes require direct bandgap materials such as gallium arsenide or indium phosphide, which are more efficient in converting electrical energy into light.

Why the temperature sensitivity of silicon is less than germanium?

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The temperature sensitivity of silicon is less than germanium because silicon has a wider energy band gap than germanium. This wider band gap allows silicon to operate more efficiently at higher temperatures, resulting in less temperature-dependent changes in its electrical properties compared to germanium. Additionally, silicon has a higher thermal conductivity than germanium, which helps dissipate heat more effectively, reducing temperature effects on its performance.

Does germanium emit far infrared radiation?

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Yes, germanium does emit far infrared radiation. Infrared radiation is part of the electromagnetic spectrum, and germanium is known for its semiconducting properties that allow it to emit and detect infrared radiation. This property makes it useful in various applications such as night vision devices and infrared sensors.

Why were element gallium and germanium important to mendeleev?

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Gallium and germanium were important to Mendeleev because their properties fit well into his periodic table, filling the gaps he had predicted based on the patterns of other elements. The discovery and confirmation of these two elements helped validate his periodic law and strengthen his periodic table's credibility.

Is gold a better conductor than germanium?

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No, gold is not a better conductor than germanium. In fact, germanium is a semiconductor and has much lower conductivity compared to gold, which is a good conductor of electricity.

Where on the planet is germanium found?

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Germanium can be found in small quantities in coal deposits worldwide. It is also found in some zinc ores, such as sphalerite. Germany, Russia, and the United States are some of the main producers of germanium.

What state is germanium found on in earth?

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Germanium is not typically found in its pure form in nature. It is most commonly found in combination with other minerals, such as zinc ores, coal, and some copper ores. Germany has historically been a major source of germanium.

Why energy gap is more in silicon than germanium?

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The energy gap in silicon is larger than in germanium because of their different atomic structures. Silicon has a larger atomic size and a stronger atomic bond compared to germanium, leading to a wider energy gap between its valence and conduction bands. This larger energy gap in silicon results in better insulating properties and makes it a popular choice for high-performance electronics.

How does germanium effect the earth?

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Germanium is a naturally occurring element in the Earth's crust, but it is rare. It is mainly found in combination with other elements such as sulfur and zinc. Germanium does not have a significant direct impact on the Earth's environment or ecosystems.

What is the different between scintillation and hyper pure germanium detector?

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A scintillation detector uses a scintillator material that emits light when ionizing radiation interacts with it, while a hyper-pure germanium detector uses high-purity germanium crystal to directly detect gamma rays through the creation of electron-hole pairs. Scintillation detectors are typically used for detecting a wider range of radiation types, while hyper-pure germanium detectors are more sensitive for gamma-ray spectroscopy due to their superior energy resolution.

Does germanium have 4 electrons?

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Yes, germanium has 32 electrons, with 4 valence electrons.

What Is the Benefits of Bio Bracelets with germanium and Magnets?

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Bio bracelets with germanium and magnets are believed by some to help improve circulation, reduce inflammation, and enhance overall well-being. Germanium is thought to emit negative ions, which can counteract the positive ions that we accumulate from electronic devices, thus promoting balance in the body. Magnets are believed to improve blood flow and reduce pain by increasing circulation. However, scientific evidence supporting these claims is limited and more research is needed to fully understand the benefits of these bio bracelets.

Why did mendeleev not include germanium in the periodic table?

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Mendeleev did not include germanium in his periodic table because the element had not been discovered yet at the time he created his table in 1869. Germanium was not discovered until 1886, after Mendeleev had already published his periodic table.

How germanium naturally occurs?

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Germanium is mainly found in minerals like germanite, argyrodite, and germanium oxide in small quantities. It is primarily extracted as a byproduct of zinc ore processing and is also found in coal deposits. Germanium can also be found in trace amounts in some living organisms.

Why is silicon and germanium used in semiconductors.pdf?

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Silicon and germanium are used in semiconductors because of their unique electronic properties, specifically their ability to conduct electricity under certain conditions. They have a crystalline structure that allows them to be easily doped with impurities to control their electrical behavior, making them ideal for use in the fabrication of electronic devices such as transistors and diodes. Additionally, Silicon is the most abundant element on Earth after Oxygen, which makes it cost-effective for large-scale production of semiconductor devices.

What State of oxides of germanium?

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Germanium oxide can exist in different oxidation states: GeO, GeO2, and GeO3. GeO2, also known as germanium dioxide, is the most stable and commonly found oxide of germanium.

What are the 4 quantum numbers for germanium?

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The four quantum numbers for germanium are:

  1. Principal quantum number (n)
  2. Azimuthal quantum number (l)
  3. Magnetic quantum number (ml)
  4. Spin quantum number (ms)

What the period and group of germanium?

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Germanium is located in period 4 and group 14 of the periodic table.

What is knee voltage for silicon and germanium?

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The knee voltage for silicon is approximately 0.7V, while for germanium it is around 0.3V. The knee voltage is the voltage at which a diode starts conducting significantly.

What is the texture for germanium?

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Germanium has a brittle texture and is typically grayish-white in color.

Is Germanium covalent?

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Yes, germanium forms covalent bonds. Germanium is a metalloid element, meaning it shares properties of both metals and nonmetals. In its elemental form, Germanium forms covalent bonds with other atoms.

What is the electron configuration for germanium (Ge)?

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The electron configuration for germanium is [Ar] 3d10 4s2 4p2. This means germanium has two electrons in the 4s orbital, ten electrons in the 3d orbital, and two electrons in the 4p orbital.

What is another element that is similar to silicon that is not germanium?

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Another element similar to silicon is carbon. Like silicon, carbon is a non-metal with the ability to form covalent bonds and can serve as the basis for a wide range of organic compounds.

Is germanium natural or man made?

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Germanium (Ge) is a natural element.

Like all elements heavier than than Nickel and Iron, Germanium is naturally produced in supernova explosions of old massive stars.

Why germanium is a metalloid?

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Germanium is considered a metalloid because it has properties of both metals and nonmetals. It sits on the border between metals and nonmetals on the periodic table, exhibiting characteristics such as semiconducting behavior and a metallic luster.