Yevropiy
63
Eu
Guruh
Nomaʼlum
Davr
6
Block
f
Protonlar
Elektronlar
Neytronlar
63
63
89
General Properties
Atom raqami
63
Atom massasi
151,964
Mass Number
152
Turkum
Lantanoidlar
Ranggi
Silver
Radioaktivlik
Yoʻq
Europium was named after Europe
Crystal Structure
Body Centered Cubic
Tarix
Europium was first found by Paul Émile Lecoq de Boisbaudran in 1890.
In 1896, French chemist Eugène-Antole Demarçay identified spectroscopic lines in ‘samarium' caused by europium.
He successfully isolated europium in 1901 using repeated crystallizations of samarium magnesium nitrate.
In 1896, French chemist Eugène-Antole Demarçay identified spectroscopic lines in ‘samarium' caused by europium.
He successfully isolated europium in 1901 using repeated crystallizations of samarium magnesium nitrate.
Electrons per shell
2, 8, 18, 25, 8, 2
Elektron konfiguratsiyasi
[Xe] 4f7 6s2
Europium is the most reactive rare earth element
Physical Properties
Phase
Qattiq modda
Zichlik
5,243 g/cm3
Erish harorati
1099,15 K | 826 °C | 1518,8 °F
Qaynash harorati
1802,15 K | 1529 °C | 2784,2 °F
Heat of Fusion
9,2 kJ/mol
Heat of Vaporization
175 kJ/mol
Solishtirma issiqlik sigʻimi
0,182 J/g·K
Abundance in Earth's crust
0,00018%
Abundance in Universe
5×10-8%
CAS Number
7440-53-1
PubChem CID Number
23981
Atomic Properties
Atom radiusi
180 pm
Kovalentlik radiusi
198 pm
Elektrmanfiylik
1,2 (Poling boʻyicha)
Ionization Potential
5,6704 eV
Molyar hajm
20,8 cm3/mol
Issiqlik oʻtkazuvchanlik
0,139 W/cm·K
Oksidlanish darajasi
2, 3
Applications
Europium is used in the manufacture of fluorescent glass.
It is also used in the anti-counterfeiting phosphors in Euro banknotes.
Europium-doped plastic has been used as a laser material.
Europium isotopes are good neutron absorbers and are used in nuclear reactor control rods.
It is also used in the anti-counterfeiting phosphors in Euro banknotes.
Europium-doped plastic has been used as a laser material.
Europium isotopes are good neutron absorbers and are used in nuclear reactor control rods.
Europium is considered to be mildly toxic
Izotoplar
Barqaror izotoplar
151Eu, 153EuBeqaror izotoplar
130Eu, 131Eu, 132Eu, 133Eu, 134Eu, 135Eu, 136Eu, 137Eu, 138Eu, 139Eu, 140Eu, 141Eu, 142Eu, 143Eu, 144Eu, 145Eu, 146Eu, 147Eu, 148Eu, 149Eu, 150Eu, 152Eu, 154Eu, 155Eu, 156Eu, 157Eu, 158Eu, 159Eu, 160Eu, 161Eu, 162Eu, 163Eu, 164Eu, 165Eu, 166Eu, 167Eu