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- Mendelevium
- Electronegativity (pauling) of Fermium
- Pb (Symbol of Lead)
- 14 (Atomic Number of Silicon)
- Atomic Mass of Helium in kg
Hg
Mercury
47 known isotopes (7 stable,
40 radioactive)
170Hg
Mass
170.005814 u
Abundance —
Half-life 0.08 milliseconds
Spin/Parity 0+
Decay Mode(s) α (100%)
171Hg
Mass
171.003585 u
Abundance —
Half-life 59 microseconds
Spin/Parity —
Decay Mode(s) α (100%)
172Hg
Mass
171.998861 u
Abundance —
Half-life 231 microseconds
Spin/Parity 0+
Decay Mode(s) α (100%)
173Hg
Mass
172.997143 u
Abundance —
Half-life 0.80 milliseconds
Spin/Parity (7/2-)
Decay Mode(s) α (100%)
174Hg
Mass
173.992871 u
Abundance —
Half-life 2.1 milliseconds
Spin/Parity —
Decay Mode(s) α (99.6%)
175Hg
Mass
174.991444 u
Abundance —
Half-life 10.6 milliseconds
Spin/Parity (7/2-)
Decay Mode(s) α (100%)
176Hg
Mass
175.987349 u
Abundance —
Half-life 20.3 milliseconds
Spin/Parity 0+
Decay Mode(s) α (94%)
177Hg
Mass
176.986285 u
Abundance —
Half-life 117 milliseconds
Spin/Parity 7/2-
Decay Mode(s) α (100%)
178Hg
Mass
177.982485 u
Abundance —
Half-life 266.5 milliseconds
Spin/Parity 0+
Decay Mode(s) α (70%), EC/β⁺ (30%)
179Hg
Mass
178.981822 u
Abundance —
Half-life 1.05 seconds
Spin/Parity (7/2-)
Decay Mode(s) α (55%), EC/β⁺ (45%), ECP (0.15%)
180Hg
Mass
179.978260 u
Abundance —
Half-life 2.59 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (52%), α (48%)
181Hg
Mass
180.977819 u
Abundance —
Half-life 3.6 seconds
Spin/Parity 1/2-
Decay Mode(s) EC/β⁺ (73%), α (27%), ECP (0.013%)
182Hg
Mass
181.974689 u
Abundance —
Half-life 10.83 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (86.2%), α (13.8%)
183Hg
Mass
182.974445 u
Abundance —
Half-life 9.4 seconds
Spin/Parity 1/2-
Decay Mode(s) EC/β⁺ (88.3%), α (11.7%), ECP (0.00026%)
184Hg
Mass
183.971718 u
Abundance —
Half-life 30.87 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (98.89%), α (1.11%)
185Hg
Mass
184.971891 u
Abundance —
Half-life 49.1 seconds
Spin/Parity 1/2-
Decay Mode(s) EC/β⁺ (94%), α (6%)
186Hg
Mass
185.969362 u
Abundance —
Half-life 1.38 m
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (99.984%), α (0.016%)
187Hg
Mass
186.969814 u
Abundance —
Half-life 1.9 m
Spin/Parity 3/2(-)
Decay Mode(s) EC/β⁺ (100%), α (0.00037%)
188Hg
Mass
187.967581 u
Abundance —
Half-life 3.25 m
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (99.999963%), α (0.000037%)
189Hg
Mass
188.968195 u
Abundance —
Half-life 7.6 m
Spin/Parity 3/2-
Decay Mode(s) EC/β⁺ (100%), α (0.00003%)
190Hg
Mass
189.966322 u
Abundance —
Half-life 20.0 m
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%), α (3.4e-7%)
191Hg
Mass
190.967158 u
Abundance —
Half-life 49 m
Spin/Parity 3/2(-)
Decay Mode(s) EC/β⁺ (100%)
192Hg
Mass
191.965634 u
Abundance —
Half-life 4.85 h
Spin/Parity 0+
Decay Mode(s) Electron capture (100%)
193Hg
Mass
192.966653 u
Abundance —
Half-life 3.80 h
Spin/Parity 3/2(-)
Decay Mode(s) EC/β⁺ (100%)
194Hg
Mass
193.965449 u
Abundance —
Half-life 447 years
Spin/Parity 0+
Decay Mode(s) Electron capture (100%)
195Hg
Mass
194.966706 u
Abundance —
Half-life 10.53 h
Spin/Parity 1/2-
Decay Mode(s) EC/β⁺ (100%)
196Hg Stable
Mass
195.965833 u
Abundance 0.1500%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
197Hg
Mass
196.967214 u
Abundance —
Half-life 64.14 h
Spin/Parity 1/2-
Decay Mode(s) Electron capture (100%)
198Hg Stable
Mass
197.966769 u
Abundance 10.0400%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
199Hg Stable
Mass
198.968281 u
Abundance 16.9400%
Half-life Stable
Spin/Parity 1/2-
Decay Mode(s) —
200Hg Stable
Mass
199.968327 u
Abundance 23.1400%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
201Hg Stable
Mass
200.970303 u
Abundance 13.1700%
Half-life Stable
Spin/Parity 3/2-
Decay Mode(s) —
202Hg Stable
Mass
201.970644 u
Abundance 29.7400%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
203Hg
Mass
202.972872 u
Abundance —
Half-life 46.610 d
Spin/Parity 5/2-
Decay Mode(s) β⁻ (100%)
204Hg Stable
Mass
203.973494 u
Abundance 6.8200%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
205Hg
Mass
204.976073 u
Abundance —
Half-life 5.14 m
Spin/Parity 1/2-
Decay Mode(s) β⁻ (100%)
206Hg
Mass
205.977514 u
Abundance —
Half-life 8.32 m
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
207Hg
Mass
206.982300 u
Abundance —
Half-life 2.9 m
Spin/Parity (9/2+)
Decay Mode(s) β⁻ (100%)
208Hg
Mass
207.985759 u
Abundance —
Half-life 41 m
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
209Hg
Mass
208.990757 u
Abundance —
Half-life 36 seconds
Spin/Parity (9/2+)
Decay Mode(s) β⁻ (100%)
210Hg
Mass
209.994310 u
Abundance —
Half-life Unknown
Spin/Parity 0+
Decay Mode(s) Unknown
211Hg
Mass
210.999581 u
Abundance —
Half-life 300 nanoseconds
Spin/Parity —
Decay Mode(s) Unknown
212Hg
Mass
212.003242 u
Abundance —
Half-life Unknown
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
213Hg
Mass
213.008803 u
Abundance —
Half-life Unknown
Spin/Parity —
Decay Mode(s) β⁻ (100%)
214Hg
Mass
214.012636 u
Abundance —
Half-life Unknown
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
215Hg
Mass
215.018368 u
Abundance —
Half-life Unknown
Spin/Parity —
Decay Mode(s) β⁻ (100%)
216Hg
Mass
216.022459 u
Abundance —
Half-life 300 nanoseconds
Spin/Parity 0+
Decay Mode(s) Unknown
Decay mode abbreviations:
β⁻ = Beta minus decay, β⁺ = Beta plus decay, EC = Electron capture, α = Alpha decay
n = Neutron emission, p = Proton emission, SF = Spontaneous fission, IT = Isomeric transition
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