Mendeleev's Periodic Table > Yb - Ytterbium

Yb - Ytterbium

Ytterbium was discovered in 1878 by Jean de Marignac in Switzerland. Ytterbium has a bright silvery lustre, is soft, malleable, and quite ductile. While the element is fairly stable, it should be kept in closed containers to protect it from air and moisture. Ytterbium is readily attacked and dissolved by mineral acids and reacts slowly with water.

Atomic number	-	70		Density	g/mL	6	.98
Atomic weight	u	173	.04	Melting point	K	1097
Bonding radius	A	1	.74	Boiling point	K	1467
Atomic radius	A	2	.4	Heat of vaporization	kJ/mol	128	.9
Ionization Potential	V	6	.254	Heat of fusion	kJ/mol	7	.66
Electronegativity	-	1	.1	Specific heat	J/gK	0	.15
The oxide is a weak base.				Crystal are face centered cubic.
Electron config. : [Xe] 4f¹⁴ 6s²

Isotopes of Yb (Ytterbium):

MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	151 1.6 sec EC/ECp,9.100 Tm-151/Er-150 150.95523	152 3.04 sec EC/ECp,4.500 Tm-152/Er-151 151.95018	153 4.2 sec a/EC,4.200 Er-149/Tm-153 152.94922	154 0.404 sec a/EC,5.474 Er-150/Tm-154 153.94624
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	155 1.75 sec a/EC,6.000 Er-151/Tm-155 154.94557	156 26.1 sec a/EC,3.570 Er-152/Tm-156 155.94276	157 38.6 sec a/EC,5.500 Er-153/Tm-157 156.94266	158 1.49 min a/EC,2.670 Er-154/Tm-158 157.93985
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	159 1.58 min EC,5.050 MeV Tm-159 158.94023	160 4.8 min EC,2.300 MeV Tm-160 159.93756	161 4.2 min EC,4.150 MeV Tm-161 160.93785	162 18.87 min EC,1.690 MeV Tm-162 161.93574
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	163 11.05 min EC,3.370 MeV Tm-163 162.93626	164 75.8 min EC,1.000 MeV Tm-164 163.93452	165 9.9 min EC,2.762 MeV Tm-165 164.93539	166 56.7 hr EC,3.040 MeV Tm-166 165.93388
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	167 17.5 min EC,1.954 MeV Tm-167 166.93494	168 0.13% Stable 167.93389	169 32.026 da EC,2.124 MeV Tm-169 168.93518	170 3.05% Stable 169.93475
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	171 14.3% Stable 170.93632	172 21.9% Stable 171.93637	173 16.12% Stable 172.93820	174 31.8% Stable 173.93885
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	175 4.185 da B-,2.390 MeV Lu-175 174.94127	176 12.7% B-Stable Lu-176 175.94256	177 1.911 hr B-,1.399 MeV Lu-177 176.94525	178 74 min B-,1.468 MeV Lu-178 177.94664
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	179 8.0 min B-,2.400 MeV Lu-179 178.94986	180 2.4 min B-,1.405 MeV Lu-180 179.95202

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