Holmyo

Paghimo ni bot Lsjbot.

Holmium
67Ho
- ↑ Ho ↓ Es Periodic table dysprosium ← holmium → erbium
Panagway
silvery white
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan	holmium, Ho, 67
Paglitok	/ˈhoʊlmiəm/ [[Help:Pronunciation respelling key|Plantilya:Smallcaps all-mee-əm]]
Kategoriyang elemento	puthaw nga lantanido
Group, period, block	n/a, 6, f
Gibug-aton sa atomo	164.93032
Kontorno sa elektron	[Xe] 4f11 6s2 2, 8, 18, 29, 8, 2
History
Pagkadiskobre	Marc Delafontaine (1878)
Physical properties
Phase	magahi
Density (near r.t.)	8.79 g·cm−3
Liquid density at m.p.	8.34 g·cm−3
Melting point	1734 K, 1461 °C, 2662 °F
Boiling point	2993 K, 2720 °C, 4928 °F
Heat of fusion	17.0 kJ·mol−1
Heat of vaporization	265 kJ·mol−1
Molar heat capacity	27.15 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 1432 1584 (1775) (2040) (2410) (2964)
Atomic properties
Oxidation states	3, 2, 1 (basic oxide)
Electronegativity	1.23 (Pauling scale)
Ionization energies	1st: 581.0 kJ·mol−1
	2nd: 1140 kJ·mol−1
	3rd: 2204 kJ·mol−1
Atomic radius	176 pm
Covalent radius	192±7 pm
Miscellanea
Crystal structure	hexagonal
Magnetic ordering	paramagnetic
Electrical resistivity	(r.t.) (poly) 814 nΩ·m
Thermal conductivity	16.2 W·m−1·K−1
Thermal expansion	(r.t.) (poly) 11.2 µm/(m·K)
Speed of sound (thin rod)	(20 °C) 2760 m·s−1
Young's modulus	64.8 GPa
Shear modulus	26.3 GPa
Bulk modulus	40.2 GPa
Poisson ratio	0.231
Vickers hardness	481 MPa
Brinell hardness	746 MPa
CAS registry number	7440-60-0
Most stable isotopes
Main article: Isotopes of holmium
iso NA half-life DM DE (MeV) DP 163Ho syn 4570 yr ε 0.003 163Dy 164Ho syn 29 min ε 0.987 164Dy 165Ho 100% 165Ho is stable with 98 neutrons 166Ho syn 26.763 h β− 1.855 166Er 167Ho syn 3.1 h β− 1.007 167Er
v t e · r

Ang holmyo (Iningles holmium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Ho ug kaiphan nga atomik 67. Ang holmyo mao ang puthaw nga lantanido.