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  2. Germanium - Wikipedia

    en.wikipedia.org/wiki/Germanium

    Pure germanium is known to spontaneously extrude very long screw dislocations, referred to as germanium whiskers. The growth of these whiskers is one of the primary reasons for the failure of older diodes and transistors made from germanium, as, depending on what they eventually touch, they may lead to an electrical short .

  3. Isotopes of germanium - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_germanium

    Germanium (32 Ge) has five naturally occurring isotopes, 70 Ge, 72 Ge, 73 Ge, 74 Ge, and 76 Ge. Of these, 76 Ge is very slightly radioactive, decaying by double beta decay with a half-life of 1.78 × 10 21 years [4] (130 billion times the age of the universe). Stable 74 Ge is the most common isotope, having a natural abundance of approximately 36%.

  4. Germanium compounds - Wikipedia

    en.wikipedia.org/wiki/Germanium_compounds

    Two oxides of germanium are known: germanium dioxide (GeO 2, germania) and germanium monoxide, (GeO). [4] The dioxide, GeO 2 can be obtained by roasting germanium disulfide (GeS 2) or by allowing elemental germanium to slowly oxidze in air, [5] and is a white powder that is only slightly soluble in water but reacts with alkalis to form germanates. [4]

  5. Metalloid - Wikipedia

    en.wikipedia.org/wiki/Metalloid

    It melts at 938 °C. Germanium is a semiconductor with an electrical conductivity of around 2 × 10 −2 S•cm −1 [306] and a band gap of 0.67 eV. [308] Liquid germanium is a metallic conductor, with an electrical conductivity similar to that of liquid mercury. [309] Most of the chemistry of germanium is characteristic of a nonmetal. [310]

  6. Post-transition metal - Wikipedia

    en.wikipedia.org/wiki/Post-transition_metal

    Germanium is usually considered to be a metalloid rather than a metal. [124] Like carbon (as diamond) and silicon, it has a covalent tetrahedral crystalline structure (BCN 4). [125] Compounds in its preferred oxidation state of +4 are covalent. [126] Germanium forms an amphoteric oxide, GeO 2 [127] and anionic germanates, such as Mg 2 GeO 4.

  7. What makes a good friend? Follow this important 'golden rule'

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    Sabrina Brier – who you know as that in-your-face, never-stops-talking "friend" from TikTok – has a new audiobook out now all about a friend group and how different personalities clash.It's ...

  8. Carbon group - Wikipedia

    en.wikipedia.org/wiki/Carbon_group

    Germanium makes up 2 parts per million of the Earth's crust, making it the 52nd most abundant element there. On average, germanium makes up 1 part per million of soil. Germanium makes up 0.5 parts per trillion of seawater. Organogermanium compounds are also found in seawater. Germanium occurs in the human body at concentrations of 71.4 parts ...

  9. 3 Fun Burger Facts That Will Surprise You, According to a ...

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    3 Fun Burger Facts That Will Surprise You, According to a Burger Scholar. Merlyn Miller. January 11, 2025 at 6:03 AM. Food & Wine / Photo Illustration by Doan Nguyen / Getty Images.

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