Mendeleev's Periodic Table > Hg - Mercury

Hg - Mercury

Famous for its toxic properties and it's physical state, mercury is a liquid heavy metal. It is used in the laboratory thermometers, manometers and barometers. Mercury is the only common metal liquid at ordinary temperatures. Mercury is sometimes called quicksilver. It rarely occurs free in nature and is found mainly in cinnabar ore (HgS) in Spain and Italy. It is a heavy, silvery-white liquid metal. It is a rather poor conductor of heat as compared with other metals but is a fair conductor of electricity. It alloys easily with many metals, such as gold, silver, and tin. These alloys are called amalgams. Its ease in amalgamating with gold is made use of in the recovery of gold from its ores.
Organic mercury compounds are important - and dangerous. Methyl mercury is a lethal pollutant found in rivers and lakes. The main source of pollution is industrial wastes settling to the river and lake bottoms.

Atomic number - 80 Density g/mL 13 .53
Atomic weight u 200 .59 Melting point K 234 .28
Bonding radius A 1 .49 Boiling point K 630
Atomic radius A 1 .76 Heat of vaporization kJ/mol 59 .229
Ionization Potential V 10 .437 Heat of fusion kJ/mol 2 .295
Electronegativity - 2 Specific heat J/gK 0 .139
The oxide is mildly basic. Crystal are rhombohedral.
Electron config. : [Xe] 4f14 5d10 6s2

Isotopes of Hg (Mercury):

MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass
175
20 msec
a,7.040 MeV
Pt-171
174.99119
176
34 msec
a,6.925 MeV
Pt-172
175.98733
177
0.130 sec
a/EC,6.740
Pt-173/Au-177
176.98634
178
0.254 sec
a/EC,6.578
Pt-174/Au-178
177.98247
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass
179
1.09 sec
a/EC/ECp,6.431
Pt-175/Au-179/Pt-178
178.98174
180
3.0 sec
a/EC,5.500
Pt-176/Au-180
179.97832
181
3.6 sec
a/EC,7.300
Pt-177/Au-181
180.97777
182
10.83 sec
a/EC,4.800
Pt-178/Au-182
181.97477
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass
183
9.4 sec
a/EC/ECp,6.300
Pt-179/Au-183/Pt-182
182.97434
184
30.6 sec
a/EC,4.100
Pt-180/Au-184
183.97189
185
49.1 sec
a/EC,5.800
Pt-181/Au-185
184.97198
186
1.38 min
a/EC,3.300
Pt-182/Au-186
185.96945
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass
187
2.4 min
a/EC,4.900
Pt-183/Au-187
186.96977
188
3.25 min
a/EC,2.300
Pt-184/Au-188
187.96755
189
7.6 min
a/EC,3.950
Pt-185/Au-189
188.96811
190
20.0 min
a/EC,1.470
Pt-186/Au-190
189.96627
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass
191
49 min
EC,3.180 MeV
Au-191
190.96706
192
4.85 hr
EC,3.516 MeV
Au-192
191.96553
193
3.80 hr
EC,2.340 MeV
Au-193
192.96664
194
444 yr
EC,2.492 MeV
Au-194
193.96538
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass
195
9.9 hr
EC,1.510 MeV
Au-195
194.96663
196 0.15%

Stable

195.96581
197
64.14 hr
EC,1.119 MeV
Au-197
196.96719
198 9.97%

Stable

197.96675
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass
199 16.87%

Stable

198.96826
200 23.10%

Stable

199.96830
201 13.18%

Stable

200.97028
202 29.86%

Stable

201.97062
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass
203
46.612 da
B-,2.139 MeV
Tl-203
202.97285
204 6.87%

Stable

203.97347
205
5.2 min
B-,1.531 MeV
Tl-205
204.97605
206
8.15 min
B-,1.308 MeV
Tl-206
205.97749
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass
207
2.9 min
B-,4.780 MeV
Tl-207
206.98253
208
42 min
B-,6.251 MeV
Tl-208
208.0


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