what is the atomic number of uranium?

Answer 1

92.

Answer 2

Name: Uranium
Symbol: U
Atomic Number: 92
Atomic Mass: 238.0289 amu
Melting Point: 1132.0 °C (1405.15 K, 2069.6 °F)
Boiling Point: 3818.0 °C (4091.15 K, 6904.4 °F)
Number of Protons/Electrons: 92
Number of Neutrons: 146
Classification: Rare Earth
Crystal Structure: Orthorhombic
Density @ 293 K: 18.95 g/cm3
Color: silverish

Answer 3

If you google "atomic number of uranium," the first thing on the list is "Uranium - Atomic Number:92."

http://www.chemicalelements.com/elements/u.html

Answer 4

Uranium is a chemical element in the periodic table that has the symbol U and atomic number 92.

Heavy, silvery-white, metallic, naturally radioactive, uranium belongs to the actinide series. Its isotopes 235U and to a lesser degree 233U are used as the fuel for nuclear reactors and the explosive material for nuclear weapons

Answer 5

92

If you want more complete info on uranium... check this website:

http://en.wikipedia.org/wiki/Uranium

92 protactinium ← uranium → neptunium
Nd
↑
U
↓
(Uqb)
Periodic Table - Extended Periodic Table
General
Name, Symbol, Number uranium, U, 92
Chemical series actinides
Group, Period, Block n/a, 7, f
Appearance silvery gray metallic;
corrodes to a spalling
black oxide coat in air
Uranium
Atomic mass 238.02891(3) g/mol
Electron configuration [Rn] 5f3 6d1 7s2
Electrons per shell 2, 8, 18, 32, 21, 9, 2
Physical properties
Phase solid
Density (near r.t.) 19.1 g·cm−3
Liquid density at m.p. 17.3 g·cm−3
Melting point 1405.3 K
(1132.2 °C, 2070 °F)
Boiling point 4404 K
(4131 °C, 7468 °F)
Heat of fusion 9.14 kJ·mol−1
Heat of vaporization 417.1 kJ·mol−1
Heat capacity (25 °C) 27.665 J·mol−1·K−1
Vapor pressure P/Pa 1 10 100 1 k 10 k 100 k
at T/K 2325 2564 2859 3234 3727 4402
Atomic properties
Crystal structure orthorhombic
Oxidation states 3+,4+,5+,6+ [1]
(weakly basic oxide)
Electronegativity 1.38 (Pauling scale)
Ionization energies 1st: 597.6 kJ/mol
2nd: 1420 kJ/mol
Atomic radius 175 pm
Van der Waals radius 186 pm
Miscellaneous
Magnetic ordering paramagnetic
Electrical resistivity (0 °C) 0.280 µΩ·m
Thermal conductivity (300 K) 27.5 W·m−1·K−1
Thermal expansion (25 °C) 13.9 µm·m−1·K−1
Speed of sound (thin rod) (20 °C) 3155 m/s
Young's modulus 208 GPa
Shear modulus 111 GPa
Bulk modulus 100 GPa
Poisson ratio 0.23
CAS registry number 7440-61-1
Selected isotopes
Main article: Isotopes of uranium iso NA half-life DM DE (MeV) DP
232U syn 68.9 y α & SF 5.414 228Th
233U syn 159,200 y SF & α 4.909 229Th
234U 0.0058% 245,500 y SF & α 4.859 230Th
235U 0.72% 7.038×108 y SF & α 4.679 231Th
236U syn 2.342×107 y SF & α 4.572 232Th
238U 99.275% 4.468×109 y SF & α 4.270 234Th

Answer 6

92

.

92 protactinium ← uranium → neptunium
Nd
↑
U
↓
(Uqb)
Periodic Table - Extended Periodic Table
General
Name, Symbol, Number uranium, U, 92
Chemical series actinides
Group, Period, Block n/a, 7, f
Appearance silvery gray metallic;
corrodes to a spalling
black oxide coat in air
Uranium
Atomic mass 238.02891(3) g/mol
Electron configuration [Rn] 5f3 6d1 7s2
Electrons per shell 2, 8, 18, 32, 21, 9, 2
Physical properties
Phase solid
Density (near r.t.) 19.1 g·cm−3
Liquid density at m.p. 17.3 g·cm−3
Melting point 1405.3 K
(1132.2 °C, 2070 °F)
Boiling point 4404 K
(4131 °C, 7468 °F)
Heat of fusion 9.14 kJ·mol−1
Heat of vaporization 417.1 kJ·mol−1
Heat capacity (25 °C) 27.665 J·mol−1·K−1
Vapor pressure P/Pa 1 10 100 1 k 10 k 100 k
at T/K 2325 2564 2859 3234 3727 4402
Atomic properties
Crystal structure orthorhombic
Oxidation states 3+,4+,5+,6+ [1]
(weakly basic oxide)
Electronegativity 1.38 (Pauling scale)
Ionization energies 1st: 597.6 kJ/mol
2nd: 1420 kJ/mol
Atomic radius 175 pm
Van der Waals radius 186 pm
Miscellaneous
Magnetic ordering paramagnetic
Electrical resistivity (0 °C) 0.280 µΩ·m
Thermal conductivity (300 K) 27.5 W·m−1·K−1
Thermal expansion (25 °C) 13.9 µm·m−1·K−1
Speed of sound (thin rod) (20 °C) 3155 m/s
Young's modulus 208 GPa
Shear modulus 111 GPa
Bulk modulus 100 GPa
Poisson ratio 0.23
CAS registry number 7440-61-1
Selected isotopes
Main article: Isotopes of uranium iso NA half-life DM DE (MeV) DP
232U syn 68.9 y α & SF 5.414 228Th
233U syn 159,200 y SF & α 4.909 229Th
234U 0.0058% 245,500 y SF & α 4.859 230Th
235U 0.72% 7.038×108 y SF & α 4.679 231Th
236U syn 2.342×107 y SF & α 4.572 232Th
238U 99.275% 4.468×109 y SF & α 4.270 234Th

Answer 7

92

Answer 8

92

Answer 9

92

Answer 10

92

Answer 11

Atomic Number For Uranium