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Hace 4 días · Body centered Cube . Consider a cube of side ‘a’, and atoms of radius ‘r’ are placed at corners and at the body centre. Length of body diagonal, √3a=4r. Volume of atoms in unit cell. In a body centered cube, there will be one atom at the centre along with 8 corner atoms.
Hace 5 días · Therefore, we can conclude that the packing fraction of a body-centered cube is 68/100 i.e. 0.68. So, the correct answer is “Option C”. Additional Information: - Atomic packing fraction is the volume of the atoms in a cell. - The packing fraction of a nucleus is the ratio of its mass defects per no. of nucleons.
Hace 4 días · Question: A metal 'X' crystallizes in a body-centered cubic structure and its metallic radius is 346.4 pm. The length (in pm) of the unit cell is. KEAM - 2022. Updated On: May 30, 2024. 200. 800. 600. 500. 400. Hide Solution. Verified By Collegedunia. The Correct Option is B. Solution and Explanation. The correct option is (B) : 800.
Hace 4 días · Exosomes (EXOs) are extracellular vesicles (EVs) ranging in size from 30 to 120 nanometers, which originate from endosomes of a multivesicular nature [1, 2].EXOs are differentiated from microvesicles, which exhibit variability in size ranging from 50 to 1500 nm and are expelled directly from the plasma membrane during budding [].EXOs are widely recognized as crucial intercellular communication ...
Hace 4 días · We chose to study the bottom structure stress evolution law in the process of undercut area advancement via the block caving method, reveal the influence law of the undercut rate on the effect of the ore body caving process, and assess the floor stress evolution law in the process of the undercut area with a different undercut rate in order to guide the production of a natural disintegration ...
Hace 2 días · The Cretaceous–Paleogene (K–Pg) extinction event, also known as the Cretaceous–Tertiary (K–T) extinction, was a sudden mass extinction of three-quarters of the plant and animal species on Earth, approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs.
Hace 5 días · The Triassic–Jurassic (Tr-J) extinction event (TJME), often called the end-Triassic extinction, was a Mesozoic extinction event that marks the boundary between the Triassic and Jurassic periods, and is one of the top five major extinction events of the Phanerozoic eon, profoundly affecting life on land and in the oceans. In the seas, the entire class of conodonts and 23–34% of marine ...
