You can search for things like...
- Nihonium
- Electron Configuration of Iron
- N (Symbol of Nitrogen)
- 109 (Atomic Number of Meitnerium)
- Discovered of Boron in day
Au
Gold
41 known isotopes (1 stable,
40 radioactive)
170Au
Mass
169.996024 u
Abundance —
Half-life 0.29 milliseconds
Spin/Parity (2-)
Decay Mode(s) Proton emission (89%), α (11%)
171Au
Mass
170.991882 u
Abundance —
Half-life 22 microseconds
Spin/Parity (1/2+)
Decay Mode(s) Proton emission (100%)
172Au
Mass
171.989997 u
Abundance —
Half-life 22 milliseconds
Spin/Parity —
Decay Mode(s) α (100%)
173Au
Mass
172.986224 u
Abundance —
Half-life 26.3 milliseconds
Spin/Parity (1/2+)
Decay Mode(s) α (94%)
174Au
Mass
173.984908 u
Abundance —
Half-life 120 milliseconds
Spin/Parity —
Decay Mode(s) α (0%)
175Au
Mass
174.981316 u
Abundance —
Half-life Unknown
Spin/Parity (1/2+)
Decay Mode(s) α (90%)
176Au
Mass
175.980117 u
Abundance —
Half-life Unknown
Spin/Parity —
Decay Mode(s) Unknown
177Au
Mass
176.976870 u
Abundance —
Half-life 1.501 seconds
Spin/Parity 1/2+
Decay Mode(s) EC/β⁺ (60%), α (40%)
178Au
Mass
177.976057 u
Abundance —
Half-life 2.6 seconds
Spin/Parity —
Decay Mode(s) EC/β⁺ (60%), α (40%)
179Au
Mass
178.973174 u
Abundance —
Half-life 7.1 seconds
Spin/Parity (1/2+ 3/2+)
Decay Mode(s) EC/β⁺ (78%), α (22%)
180Au
Mass
179.972490 u
Abundance —
Half-life 8.4 seconds
Spin/Parity —
Decay Mode(s) EC/β⁺ (98.2%), α (1.8%)
181Au
Mass
180.970079 u
Abundance —
Half-life 13.7 seconds
Spin/Parity (3/2-)
Decay Mode(s) EC/β⁺ (97.3%), α (2.7%)
182Au
Mass
181.969614 u
Abundance —
Half-life 15.5 seconds
Spin/Parity (2+)
Decay Mode(s) EC/β⁺ (99.87%), α (0.13%)
183Au
Mass
182.967588 u
Abundance —
Half-life 42.8 seconds
Spin/Parity (5/2)-
Decay Mode(s) EC/β⁺ (99.45%), α (0.55%)
184Au
Mass
183.967452 u
Abundance —
Half-life 20.6 seconds
Spin/Parity 5+
Decay Mode(s) EC/β⁺ (100%), α (0.016%)
185Au
Mass
184.965799 u
Abundance —
Half-life 4.25 m
Spin/Parity 5/2-
Decay Mode(s) EC/β⁺ (99.74%), α (0.26%)
186Au
Mass
185.965953 u
Abundance —
Half-life 10.7 m
Spin/Parity 3-
Decay Mode(s) EC/β⁺ (100%), α (0.0008%)
187Au
Mass
186.964542 u
Abundance —
Half-life 8.3 m
Spin/Parity 1/2(+)
Decay Mode(s) EC/β⁺ (100%), α (0.003%)
188Au
Mass
187.965248 u
Abundance —
Half-life 8.84 m
Spin/Parity 1-
Decay Mode(s) EC/β⁺ (100%)
189Au
Mass
188.963948 u
Abundance —
Half-life 28.7 m
Spin/Parity 1/2+
Decay Mode(s) EC/β⁺ (100%), α (0.00003%)
190Au
Mass
189.964752 u
Abundance —
Half-life 42.8 m
Spin/Parity 1-
Decay Mode(s) EC/β⁺ (100%), α (0.000001%)
191Au
Mass
190.963716 u
Abundance —
Half-life 3.18 h
Spin/Parity 3/2+
Decay Mode(s) EC/β⁺ (100%)
192Au
Mass
191.964818 u
Abundance —
Half-life 4.94 h
Spin/Parity 1-
Decay Mode(s) EC/β⁺ (100%)
193Au
Mass
192.964138 u
Abundance —
Half-life 17.65 h
Spin/Parity 3/2+
Decay Mode(s) EC/β⁺ (100%)
194Au
Mass
193.965419 u
Abundance —
Half-life 38.02 h
Spin/Parity 1-
Decay Mode(s) EC/β⁺ (100%)
195Au
Mass
194.965038 u
Abundance —
Half-life 186.01 d
Spin/Parity 3/2+
Decay Mode(s) Electron capture (100%)
196Au
Mass
195.966571 u
Abundance —
Half-life 6.1669 d
Spin/Parity 2-
Decay Mode(s) EC/β⁺ (93%), β⁻ (7%)
197Au Stable
Mass
196.966570 u
Abundance 100.0000%
Half-life Stable
Spin/Parity 3/2+
Decay Mode(s) —
198Au
Mass
197.968244 u
Abundance —
Half-life 2.6941 d
Spin/Parity 2-
Decay Mode(s) β⁻ (100%)
199Au
Mass
198.968767 u
Abundance —
Half-life 3.139 d
Spin/Parity 3/2+
Decay Mode(s) β⁻ (100%)
200Au
Mass
199.970757 u
Abundance —
Half-life 48.4 m
Spin/Parity (1-)
Decay Mode(s) β⁻ (100%)
201Au
Mass
200.971658 u
Abundance —
Half-life 26.0 m
Spin/Parity 3/2+
Decay Mode(s) β⁻ (100%)
202Au
Mass
201.973856 u
Abundance —
Half-life 28.4 seconds
Spin/Parity (1-)
Decay Mode(s) β⁻ (100%)
203Au
Mass
202.975154 u
Abundance —
Half-life 60 seconds
Spin/Parity 3/2+
Decay Mode(s) β⁻ (100%)
204Au
Mass
203.978110 u
Abundance —
Half-life 39.8 seconds
Spin/Parity (2-)
Decay Mode(s) β⁻ (100%)
205Au
Mass
204.980064 u
Abundance —
Half-life 32.0 seconds
Spin/Parity (3/2+)
Decay Mode(s) β⁻ (100%)
206Au
Mass
205.984766 u
Abundance —
Half-life 40 seconds
Spin/Parity 5+ 6+
Decay Mode(s) β⁻ (100%)
207Au
Mass
206.988577 u
Abundance —
Half-life 300 nanoseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%)
208Au
Mass
207.993655 u
Abundance —
Half-life Unknown
Spin/Parity —
Decay Mode(s) β⁻ (100%)
209Au
Mass
208.997606 u
Abundance —
Half-life 300 nanoseconds
Spin/Parity (3/2+)
Decay Mode(s) β⁻ (100%)
210Au
Mass
210.002877 u
Abundance —
Half-life 300 nanoseconds
Spin/Parity —
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7