Rubidyo

Rubidium
	37Rb
	krypton ← rubidium → strontium
Panagway
	grey white;
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan	rubidium, Rb, 37
Paglitok	/rᵿˈbɪdiəm/ [[Help:Pronunciation respelling key\|roo-Plantilya:Smallcaps all-ee-əm]]
Kategoriyang elemento	puthaw
Group, period, block	1, 5, s
Gibug-aton sa atomo	85.4678(3)
Kontorno sa elektron	[Kr] 5s1; 2, 8, 18, 8, 1 Electron shells of rubidium (2, 8, 18, 8, 1)
History
Pagkadiskobre	Robert Bunsen and Gustav Kirchhoff (1861)
First isolation	George de Hevesy
Physical properties
Phase	magahi
Density (near r.t.)	1.532 g·cm−3
Liquid density at m.p.	1.46 g·cm−3
Melting point	312.46 K, 39.31 °C, 102.76 °F
Boiling point	961 K, 688 °C, 1270 °F
Critical point	(extrapolated) 2093 K, 16 MPa
Heat of fusion	2.19 kJ·mol−1
Heat of vaporization	75.77 kJ·mol−1
Molar heat capacity	31.060 J·mol−1·K−1
Vapor pressure
Atomic properties
Oxidation states	1; (strongly basic oxide)
Electronegativity	0.82 (Pauling scale)
Ionization energies	1st: 403 kJ·mol−1
	2nd: 2632.1 kJ·mol−1
	3rd: 3859.4 kJ·mol−1
Atomic radius	248 pm
Covalent radius	220±9 pm
Van der Waals radius	303 pm
Miscellanea
Crystal structure	body-centered cubic
Magnetic ordering	paramagnetic
Electrical resistivity	(20 °C) 128 nΩ·m
Thermal conductivity	58.2 W·m−1·K−1
Speed of sound (thin rod)	(20 °C) 1300 m·s−1
Young's modulus	2.4 GPa
Bulk modulus	2.5 GPa
Mohs hardness	0.3
Brinell hardness	0.216 MPa
CAS registry number	7440-17-7
Most stable isotopes
	Main article: Isotopes of rubidium
	v; t; e; · r

Ang rubidyo (Iningles rubidium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Rb ug kaiphan nga atomik 37. Ang rubidyo mao ang puthaw.

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