The element name originates from the Greek word dysprositos, meaning hard to get at. A True B False Medium Solution Verified by Toppr Correct option is B) As we move along a period, radius decreases but in dblock they have almost same radius or can say t hey have approximately equal size. It is not found in nature as a free element. Atomic size of nickel, cobalt and iron is in order of : Fe>Co>Ni. Dysprosium is found in various minerals including bastnäsite, blomstrandine, euxenite, fergusonite, gadolinite, monazite, polycrase and xenotime. Therefore, According to the atomic radii trend in the periodic table, the increasing order of the atomic radius of given elements is Br, Al, Fe, Na and Cs. It is a member of the lanthanide or rare earth series of elements and, along with holmium, has the highest magnetic strength of all other elements on the periodic table, especially at low temperatures. In its elemental form, dysprosium has a silvery-white appearance. Dysprosium was first discovered by Paul Emile Lecoq de Boisbaudran in 1886. The dysprosium atom has an atomic radius of 178 pm and a Van der Waals radius of 229 pm. The number of electrons in each of dysprosium's shells is and its electron configuration is 4f 10 6s 2. Compute and compare its theoretical density with. Calcium is an element with atomic number 20. Dysprosium (atomic symbol: Dy, atomic number: 66) is a Block F, Group 3, Period 6 element with an atomic radius of 162.5. 3.7 Iron has a BCC crystal structure, an atomic radius of 0.124 nm, and an atomic weight of 55.85 g/mol. Up to date, curated data provided by Mathematica s ElementData function from Wolfram Research, Inc. Accompanying this transformation is a change in the atomic radius of Fefrom RBCC 0.12584 nm to RFCC 0.12894 nmand, in addition, a change in density (and volume). Thin Film Deposition & Evaporation Materials Iron (Fe) undergoes an allotropic transformation at 912☌: upon heating from a BCC ( phase) to an FCC ( phase).The radius of Fe 2+ is 0.076 nm, and that of Fe 3+ is 0.064 nm. Additive Manufacturing & 3D Printing Materials The electronic configuration of the Fe atom is (Ar)(3d) 6 (4s) 2, and it has an atomic radius of 0.126 nm.
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