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The physical properties of gallium are highly anisotropic, i.e. have different values along the three major crystallographic axes a, b, and c (see table), producing a significant difference between the linear (α) and volume thermal expansion coefficients. The properties of gallium are strongly temperature-dependent, particularly near the ...
Gallium reacts with ammonia at 1050 °C to form gallium nitride, GaN. Gallium also forms binary compounds with phosphorus, arsenic, and antimony: gallium phosphide (GaP), gallium arsenide (GaAs), and gallium antimonide (GaSb). These compounds have the same structure as ZnS, and have important semiconducting properties.
Gallium-67 (half-life 3.3 days) is a gamma-emitting isotope (the gamma ray emitted immediately after electron capture) used in standard nuclear medical imaging, in procedures usually referred to as gallium scans. It is usually used as the free ion, Ga 3+. It is the longest-lived radioisotope of gallium.
Gallium(I) oxide is a brown-black diamagnetic solid which is resistant to further oxidation in dry air. It starts decomposing upon heating at temperatures above 500 °C, and the decomposition rate depends on the atmosphere (vacuum, inert gas, air).
Pages in category "Gallium" The following 8 pages are in this category, out of 8 total. ... This page was last edited on 15 April 2021, at 14:32 (UTC).
Uue–Uoq (E119–E184) each have an article page by their systematic name. That is 66 article page. Six of these are content pages (articles), and 58 are a redirect. R: Redirects are non-content pages. Treated as non-existant page. E172 would be the end of period 8 ("noble gas") and E173 would be the beginning of period 9.
Gallium monoiodide reacts with various monodentate Lewis bases to form Ga(II), Ga(III), or mixed valent compounds, as well as gallium-based dimers and trimers. For example, gallium monoiodide can react with primary, secondary, and tertiary amines, secondary or tertiary phosphines or ethers to form Ga(II)-Ga(II) dimers.
Also, it is formed on heating gallium in air or by thermally decomposing gallium nitrate at 200–250 °C. Crystalline Ga 2 O 3 can occur in five polymorphs, α, β, γ, δ, and ε. Of these polymorphs β-Ga 2 O 3 is the most thermodynamically stable phase at standard temperature and pressure [ 14 ] while α-Ga 2 O 3 is the most stable ...