Search results
Results from the WOW.Com Content Network
Selenium runs on Windows, Linux, and macOS. It is open-source software released under the Apache License 2.0. Selenium is an open-source automation framework for web applications, enabling testers and developers to automate browser interactions and perform functional testing. With versatile tools like WebDriver, Selenium supports various ...
Selenium is a chemical element; it has the symbol Se and atomic number 34. It has various physical appearances, including a brick-red powder, a vitreous black solid, and a grey metallic-looking form. It seldom occurs in this elemental state or as pure ore compounds in Earth's crust.
Selenium is toxic in high concentrations. As sodium selenite, the chronic toxic dose for human beings was described as about 2.4 to 3 milligrams of selenium per day. [7] In 2000, the US Institute of Medicine set the adult Tolerable upper intake levels (UL) for selenium from all sources - food, drinking water and dietary supplements - at 400 μg/day. [8]
Texas holds on at No. 1 ahead of Oregon in the USA TODAY Sports NCAA Re-Rank 1-134 after the Ducks scored a mammoth Big Ten win against Ohio State. The win stands as the most impressive by any ...
No other menu items have been pulled. E. coli cases reported in 10 states. As of Tuesday, the Centers for Disease Control and Prevention had reported illnesses in the following states:
Solid SeO 2 is a one-dimensional polymer, the chain consisting of alternating selenium and oxygen atoms. Each Se atom is pyramidal and bears a terminal oxide group. The bridging Se-O bond lengths are 179 pm and the terminal Se-O distance is 162 pm. [5] The relative stereochemistry at Se alternates along the polymer chain (syndiotactic).
An Arizona girl nearly lost her leg after going 30 hours without realizing she had been bitten by a rattlesnake, according to her family. Allie Brasfield, 7, was spending time with family at ...
Selenium compounds are compounds containing the element selenium (Se). Among these compounds, selenium has various oxidation states, the most common ones being −2, +4, and +6. Selenium compounds exist in nature in the form of various minerals, such as clausthalite, guanajuatite, tiemannite, crookesite etc., and can also coexist with sulfide ...