Gadolinium Element in Periodic Table | Atomic Number Atomic Mass

Gadolinium

Gadolinium Element:

Gadolinium is a chemical element included in the lanthanide series of periodic table. It is represented by the symbol Gd and its atomic number is 64. Gadolinium is a silvery white metal which is ductile and malleable. It is paramagnetic at room temperature, with a ferromagnetic Curie point at 20 °C. It is found in nature in the form of its oxide. Gd  reacts with oxygen to form Gd2O3. Like its precursors in the lanthanide series, Gd reacts with cold water slowly and reacts quickly with hot water form gadolinium hydroxide, releasing hydrogen gas. Gd reacts with halogens to form its respective halides in its trivalent state.

Gadolinium occurs in different forms of isotopes naturally, among which the relatively stable are with the mass numbers 154, 155, 156, 157, 158 and 160 along with one radio isotope 152Gd.

Uses Of Gadolinium Element:

Gadolinium with mass number 157 is used in neutron therapy to target tumours. Along with Yttrium, gadolinium is used making garnets which have microwave applications. Gadolinium-gallium garnet is used in imitation diamonds. Gd compounds are injected intravenously into human body to make the images of suspected inner parts more distinct for clinical study during MRI scanning. Nanotubes packed with gadolinium known as gado-nanotubes are 40 times more efficient than gadolinium contrast agents. Gd is useful in absorbing neutrons and hence finds its use in the core of nuclear reactors. Gd compounds are used as  phosphors in television tubes.

Gadolinium

Gadolinium Element Information:

Discovery year:  1880

Discovered by:Jean Charles Galissard de Marignac

Atomic number: 64

Relative atomic mass: 157.25  

Electron configuration: [Xe] 4f7 5d1 6s2

Block: f-block

Other elements in the same block:

Cerium, Praseodymium, Neodymium, Promethium, Samarium, Europium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium, Thorium, Protactinium, Uranium, Neptunium, Plutonium, Americium, Curium, Berkelium, Californium, Einsteinium, Fermium, Mendelevium, Nobelium and  Lawrencium are the elements in the same block.

Period: period 6

Other elements in the same period:

Caesium, Barium, LanthanumCerium, Praseodymium, Neodymium, Promethium, Samarium, Europium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium, Hafnium, Tantalum, Tungsten, Rhenium, Osmium, Iridium, Platinum, Gold, Mercury, Thallium, Lead, Bismuth, Polonium, Astatine and Radon

Group: Lanthanides

Other elements in the same group:

Cerium, praseodymium, Neodymium, Promethium, Samarium, Europium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium.

Other elements in the same orbital:

Lanthanum, Cerium, Praseodymium, Neodymium, Promethium, Samarium, Europium Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium and Lutetium are the elements in the same orbital.

Allotropes: none

Key isotopes: 158Gd 

Melting point: 1313°C, 2395°F, 1586 K 

Boiling point: 3273°C, 5923°F, 3546 K

Element category:  lanthanide

Density (g cm−3): 7.90 

CAS number: 7440-54-2

Color: silvery white

You can know detailed information for each element,

Hydrogen, HeliumLithiumBerylliumBoronCarbonNitrogenOxygenFluorine,  Neon , SodiumMagnesiumAluminiumSiliconPhosphorusSulfurChlorineArgon, PotassiumCalciumScandiumTitaniumVanadiumChromiumManganeseIronCobaltNickelCopperZincGalliumGermaniumArsenicSeleniumBromine, Krypton,  Rubidium, StrontiumYttriumZirconiumNiobiumMolybdenumTechnetiumRutheniumRhodiumPalladiumSilverCadmiumIndiumTinAntimonyTelluriumIodine, Xenon,  Caesium, BariumLanthanum,  CeriumPraseodymiumNeodymiumPromethiumSamariumEuropiumGadoliniumTerbiumDysprosiumHolmiumErbiumThuliumYtterbiumLutetiumHafniumTantalumTungstenRheniumOsmiumIridiumPlatinumGoldMercuryThalliumLeadBismuthPoloniumAstatine, Radon,  Francium, RadiumActiniumThoriumProtactiniumUraniumNeptuniumPlutoniumAmericiumCuriumBerkeliumCaliforniumEinsteiniumFermiumMendeleviumNobeliumLawrenciumRutherfordiumDubniumSeaborgiumBohriumHassiumMeitneriumDarmstadtiumRoentgeniumCoperniciumNihoniumFleroviumMoscoviumLivermoriumTennessine, Oganesson.

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