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EuropiumGadoliniumTerbium
Gd
Cm  
 
 
General
Name, Symbol, Number Gadolinium, Gd, 64
Chemical series Lanthanides
Group, Period, Block _ , 6 , f
Density, Hardness 7901 kg/m3Kilogram per cubic metre is the SI measure of density and is represented as kg/m³, where kg stands for kilogram and m³ stands for cubic metre. The density of water is about 1000 kg/m³, since a cubic metre of water weighs about a tonne. kg/m³" is sometimes, no data
AppearanceFor alternative meanings, see color (disambiguation). visual arts. Color (or colour is a sensation which (in humans) derives from the ability of the fine structure of the eye to distinguish three differently filtered analyses of a view. The perception of silvery white
Atomic properties
Atomic weightIn reference to a certain isotope of a chemical element, atomic weight (more accurately relative atomic mass though also called simply atomic mass is the mass of one atom of the isotope expressed in units atomic mass unit amu) such that the Carbon-12 isot 157.25(3) amuTo help compare different orders of magnitude we list here masses between 60. 22 amu and 602. 2 amu (10-25 kg and 10-24 kg). See also masses of other orders of magnitude. lighter masses 91. 224 amu atomic mass of zirconium 92. 90638 amu atomic mass of nio
Atomic radiusAtomic radius is the distance from the atomic nucleus to the outmost stable electron orbital in a atom that is at equilibrium and is measured in picometers or Angstroms. Atomic radii are called covalent radii (a reference to the types of bonds formed) whe (calc.) 188 (233) pmTo help compare different orders of magnitude this page lists lengths between 100 pm and 1 nm (10-10 m and 10-9 m). See also lengths of other orders of magnitude. Lengths shorter than 100 pm 100 pm 1 Angstrom 100 pm (0. 1 nm) covalent radius of sulfur ato
Covalent radiusCovalent radius in chemistry corresponds to half of the distance between two identical atomic nuclei, bound by a covalent bond. It is expressed in terms of pm or A. Chemistry. no data
van der Waals radius no data
Electron configuration [ Xe]6s²5d¹4f7
e- 's per energy level 2, 8, 18, 25, 9, 2
Oxidation states ( Oxide) 3 (mildly basic)
Crystal structure Hexagonal
Physical properties
State of matter solid ( ferromagnetic)
Melting point 1585 K (2394 °F)
Boiling point 3523 K (5882 °F)
Molar volume 19.90 ×10-6 m3/mol
Heat of vaporization 359.4 kJ/mol
Heat of fusion 10.05 kJ/mol
Vapor pressure 24400 Pa at 1585 K
Velocity of sound 2680 m/s at 293.15 K
Miscellaneous
Electronegativity 1.20 ( Pauling scale)
Specific heat capacity 230 J/(kg*K)
Electrical conductivity 0.736 106/m ohm
Thermal conductivity 10.6 W/(m*K)
1st ionization potential 593.4 kJ/mol
2nd ionization potential 1170 kJ/mol
3rd ionization potential 1990 kJ/mol
4th ionization potential 4250 kJ/mol
Most stable isotopes
iso NA half-life DM DE M eV DP
152Gd 0.20% 1.08E+14 a α 2.205 148 Sm
154Gd 2.18% 154Gd is stable with 90 neutrons
155Gd 14.80% 155Gd is stable with 91 neutrons
156Gd 20.47% 156Gd is stable with 92 neutrons
157Gd 15.65% 157Gd is stable with 93 neutrons
158Gd 24.84% 158Gd is stable with 94 neutrons
160Gd 21.86% 1.3E+21 a β-β- no data 160 Dy
SI units & STP are used except where noted.

Gadolinium is a chemical element in the periodic table that has the symbol Gd and atomic number 64.





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