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The stable indium isotope, indium-113, is one of the p-nuclei, the origin of which is not fully understood; although indium-113 is known to be made directly in the s- and r-processes (rapid neutron capture), and also as the daughter of very long-lived cadmium-113, which has a half-life of about eight quadrillion years, this cannot account for ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 16 February 2025. This article is about the chemical element. For other uses, see Iodine (disambiguation). Chemical element with atomic number 53 (I) Iodine, 53 I Iodine Pronunciation / ˈ aɪ ə d aɪ n, - d ɪ n, - d iː n / (EYE -ə-dyne, -din, -deen) Appearance lustrous metallic gray solid ...
It is found dissolved in seawater (which is 0.04% potassium by weight), [10] [11] and occurs in many minerals such as orthoclase, a common constituent of granites and other igneous rocks. [12] Potassium is chemically very similar to sodium, the previous element in group 1 of the periodic table.
Indium electroplated into the depressions formed the collector and emitter. [ 35 ] [ 36 ] AT&T first used transistors in telecommunications equipment in the No. 4A Toll Crossbar Switching System in 1953, for selecting trunk circuits from routing information encoded on translator cards. [ 37 ]
Gallium(III) phosphide (GaP) Aluminium gallium indium phosphide (AlGaInP) Aluminium gallium phosphide (AlGaP) Blue: 450 < λ < 500 2.48 < ΔV < 3.7 Zinc selenide (ZnSe) Indium gallium nitride (InGaN) Silicon carbide (SiC) as substrate Silicon (Si) as substrate — (under development) Violet: 400 < λ < 450 2.76 < ΔV < 4.0 Indium gallium ...
Solar array mounted on a rooftop. A solar panel is a device that converts sunlight into electricity by using photovoltaic (PV) cells. PV cells are made of materials that produce excited electrons when exposed to light.
RCA was the exclusive manufacturer of superheterodyne radio sets until 1930. All RCA receivers were battery powered until late 1927 when plug-in AC sets were introduced, providing another boost in sales. [24]