Discovery	1828 Berzelius
Abundance	9.6
Radius	0
Electronegativity	1.3
Ionization	6.3067
Number of isotopes	12
Electronic configuration	[Rn] 6d2 7s2
Oxidation states	2,3,4
Electron by energy level	2,8,18,32,18,10,2

Minerals containing this element : 81

Mineral	Hardness	Density
Aeschynite-(Ce)	5.00 / 6.00	5.19
Aeschynite-(Y)	5.00 / 6.00	4.85
Allanite-(La)	6.00 / 6.00	3.93
Althupite	3.50 / 4.00	3.90
Arapovite	5.50 / 6.00	3.43
Aspedamite	3.00 / 4.00	4.07
Brabantite	5.50 / 5.50	4.72
Britholite-(Ce)	5.50 / 5.50	4.20
Brockite	3.00 / 4.00	3.70
Bussyite-(Ce)		3.00
Cabvinite
Calciobetafite	4.50 / 5.50	4.20
Cerianite-(Ce)		7.22
Cervandonite-(Ce)	5.00 / 5.00
Cheralite	5.00 / 5.00	5.00
Chevkinite-(Ce)	5.00 / 5.50	4.50
Ciprianiite
Coutinhoite	1.50 / 1.50
Dingdaohengite-(Ce)	6.00 / 6.00	4.83
Dissakisite-(La)	6.50 / 7.00	3.79
Ekanite	4.50 / 4.50	3.08
Euxenite-(Y)	6.50 / 6.50	4.70
Eylettersite	3.00 / 4.00	3.38
Fersmite	4.00 / 4.50	4.69
Fluorbritholite-(Ce)	5.00 / 5.00	4.66
Fluorcalciobritholite	5.50 / 5.50	4.20
Grayite	3.00 / 4.00	3.70
Huttonite	5.00 / 5.00	7.10
Hydroxymanganopyrochlore		5.40
Ichnusaite		4.26
Ilímaussite-(Ce)	4.00 / 4.00	3.60
Iraqite-(La)	4.50 / 4.50	3.27
Iwashiroite-(Y)	6.00 / 6.00	7.10
Karnasurtite-(Ce)	2.00 / 2.00	2.89
Kuannersuite-(Ce)	4.50 / 5.50	4.66
Kukharenkoite-(La)	4.00 / 4.00	4.65
Lakargiite	8.00 / 8.50	4.59
Loparite-(Ce)	5.50 / 5.50	4.77
Melanocerite-(Ce)	5.00 / 6.00	4.13
Menezesite	4.00 / 4.00	4.18
Monazite-(Ce)	5.00 / 5.50	4.80
Monazite-(La)	5.00 / 5.50	4.80
Monazite-(Nd)	5.00 / 5.50	4.80
Monazite-(Sm)		5.51
Mottanaite-(Ce)		3.61
Nioboaeschynite-(Y)	5.00 / 6.00	5.34
Nuragheite		5.15
Okanoganite-(Y)	4.00 / 4.00	4.35
Perrierite-(Ce)	5.50 / 5.50	4.29
Piergorite-(Ce)	5.50 / 6.00
Polyakovite-(Ce)	5.50 / 6.00	4.75
Polycrase-(Y)	5.00 / 6.00	4.97
Proshchenkoite-(Y)	5.00 / 5.00	4.72
Samarskite-(Yb)	5.00 / 6.00	7.03
Saryarkite-(Y)	3.50 / 4.00	3.07
Sazhinite-(La)	3.00 / 3.00
Smirnovskite
Steacyite	5.00 / 5.00	2.95
Steenstrupine-(Ce)	4.00 / 4.00	3.40
Thorbastnäsite	4.00 / 4.50	4.04
Thorianite	6.00 / 6.00	10.00
Thoriopyrochlore
Thorite	5.00 / 5.00	4.00
Thornasite		2.62
Thorogummite	5.50 / 5.50	5.40
Thorosteenstrupine	4.00 / 4.00	3.02
Thorsite
Thorutite	4.50 / 5.50	5.82
Tritomite-(Ce)	5.50 / 5.50	4.20
Tuliokite	3.00 / 4.00	3.15
Turkestanite	5.50 / 6.00	3.36
Uedaite-(Ce)	5.00 / 6.00	4.19
Umbozerite	5.00 / 5.00	3.60
Uranopolycrase	5.00 / 6.00	5.50
Vicanite-(Ce)	5.50 / 6.00	4.73
Yakovenchukite-(Y)	5.00 / 5.00	2.83
Yttrialite-(Y)	5.00 / 5.50	4.58
Yttrobetafite-(Y)	4.50 / 5.50	3.65
Yttrocrasite-(Y)	5.50 / 6.00	4.80
Zirconolite-3O	5.50 / 5.50	4.70
Zirkelite	5.50 / 5.50	4.70