Home
Properties
Calculator
Fun
English
Uranium
(U)
1
2
0
Open in calculator
2
8
18
32
21
9
2
Animation
U
Category
Actinoid
Series
actinide
Show
Relative atomic mass
238.02891
Density
18.95
Melting point (°C)
1132
Boiling point (°C)
3900
Electronegativity (Pauling)
1.38
Half-life
4.468×10⁹ y
Discovery year
1789
Discovered by
Martin Heinrich Klaproth
Electrons: 92
Protons: 92
Neutrons: 146
Wikipedia
Decay chain
U-238
(4.468×10⁹ y)
α decay
Th-234
(24.1 d)
β⁻ decay
Pa-234m
(1.17 min)
β⁻ decay
U-234
(245,500 y)
α decay
Th-230
(75,380 y)
α decay
Ra-226
(1600 y)
α decay
Rn-222
(3.82 d)
α decay
Po-218
(3.10 min)
α decay
Pb-214
(26.8 min)
β⁻ decay
Bi-214
(19.9 min)
β⁻ decay
Po-214
(164 µs)
α decay
Pb-210
(22.2 y)
β⁻ decay
Bi-210
(5.01 d)
β⁻ decay
Po-210
(138.4 d)
α decay
Pb-206
(stable)
stable
created by @lukaswyss
Uranium (U) – Element 92