Itrio
39
Y
Grupo
3
Perio
5
Bloko
d
Protonoj
Elektronoj
Neŭtronoj
39
39
50
Ĝeneralaj Propraĵoj
Atoma Nombro
39
Atommaso
88,90585
Amasa Nombro
89
Kategorio
Transirmetaloj
Koloro
Arĝento
Radioaktiva
Ne
Named after Ytterby, a village in Sweden near Vauxholm
Kristala Strukturo
Simpla Sesangula
Historio
In 1787, Carl Axel Arrhenius found a new mineral near Ytterby in Sweden and named it ytterbite, after the village.
Johan Gadolin discovered yttrium's oxide in Arrhenius' sample in 1789, and Anders Gustaf Ekeberg named the new oxide yttria.
Elemental yttrium was first isolated in 1828 by Friedrich Wöhler.
Johan Gadolin discovered yttrium's oxide in Arrhenius' sample in 1789, and Anders Gustaf Ekeberg named the new oxide yttria.
Elemental yttrium was first isolated in 1828 by Friedrich Wöhler.
Elektronoj per ŝelo
2, 8, 18, 9, 2
Elektrona Agordo
[Kr] 4d1 5s2
Finely divided yttrium is very unstable in air
Fizikaj Propraĵoj
Fazo
Solido
Denso
4,469 g/cm3
Fandpunkto
1799,15 K | 1526 °C | 2778,8 °F
Bolpunkto
3609,15 K | 3336 °C | 6036,8 °F
Varmo de Fuzio
11,4 kJ/mol
Varmo de Vaporiĝo
380 kJ/mol
Specifa Varmo Kapacito
0,298 J/g·K
Krusta Abundo
0,0029%
Universa Abundo
7×10-7%
CAS Nombro
7440-65-5
PubChem Kunmetita Identiga Nombro
23993
Atomaj Propraĵoj
Atoma Radiuso
180 pm
Kovalenta Radiuso
190 pm
Elektronegativeco
1,22 (Pauling-skalo)
Potencialo de jonigo
6,2173 eV
Atoma Volumo
19,8 cm3/mol
Termika Kondukto
0,172 W/cm·K
Oksidaj Ŝtatoj
1, 2, 3
Aplikoj
Yttrium is often used in alloys, increasing the strength of aluminum and magnesium alloys.
Yttrium is one of the elements used to make the red color in CRT televisions.
It is also used as a deoxidizer for non-ferrous metals such as vanadium.
Yttrium can be used in laser systems and as a catalyst for ethylene polymerization reactions.
Yttrium is one of the elements used to make the red color in CRT televisions.
It is also used as a deoxidizer for non-ferrous metals such as vanadium.
Yttrium can be used in laser systems and as a catalyst for ethylene polymerization reactions.
Exposure to yttrium compounds in humans may cause lung disease
Izotopoj
Stabilaj Izotopoj
89YMalstabilaj Isotopoj
76Y, 77Y, 78Y, 79Y, 80Y, 81Y, 82Y, 83Y, 84Y, 85Y, 86Y, 87Y, 88Y, 90Y, 91Y, 92Y, 93Y, 94Y, 95Y, 96Y, 97Y, 98Y, 99Y, 100Y, 101Y, 102Y, 103Y, 104Y, 105Y, 106Y, 107Y, 108Y