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U-238 and U-235 are the two isotopes of Uranium.
Molar mass M is not the right expression for each isotope.
The naturally occurring Uranium has the following composition :
0.7% U-235, its Atomic Mass is 235.043 amu (amu is atomic mass unit), and.
99.3% U-238, its atomic mass is 238.05 amu.
Jamal Ahmed
Wiki User
∙ 11y agoThe molar mass is not a correct expression for isotopes.
The atomic mass of U235 (in amu) is: 235,043 929 918 ± 0,000 001 957.
The atomic mass of U238 (in amu) is: 238,050 788 247 ± 0,000 002 044.
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Uranium -235 and uranium -238 are different of uranium?
Isotopes Uranium 235 and uranium 238 are only natural isotopes of the element uranium.
Are uranium 235 and uranium 238 said to be radioactive molecules since they have the same number of protons but different numbers of neutrons?
No, Uranium-235 and uranium-238 are radioactive, natural isotopes (not molecules, but atoms) of the one and the same element: uranium.Both with 92 protons and 235-92 = 143 neutrons in U-235 but 146 neutrons in U-238.
How is the structure of an atom of uranium 235 different from the structure of an astom of uranium 238?
Uranium-235 has 143 neutrons, uranium-238 has146 neutrons.
How is the structure of an atom or uranium 235 dfferent to the structure of an atom of uranium 238?
Uranium-235 has 143 neutrons and uranium-238 has 146 neutrons.
What are the half lives for uranium-235 and uranium-238?
703, 800,000
What are the molar masses of uranium 238 and uranium 235?
U-238 and U-235 are the two isotopes of Uranium. Molar mass M is not the right expression for each isotope. The naturally occurring Uranium has the following composition : 0.7% U-235, its Atomic Mass is 235.043 amu (amu is atomic mass unit), and. 99.3% U-238, its atomic mass is 238.05 amu.
What are the similarities and differences between the isotopes uranium 235 and uranium 238?
Uranium-235 has 143 neutrons and uranium-238 has 146 neutrons. And of course the atomic masses are different.
Uranium -235 and uranium -238 are different of uranium?
Isotopes Uranium 235 and uranium 238 are only natural isotopes of the element uranium.
Are uranium 235 and uranium 238 said to be radioactive molecules since they have the same number of protons but different numbers of neutrons?
No, Uranium-235 and uranium-238 are radioactive, natural isotopes (not molecules, but atoms) of the one and the same element: uranium.Both with 92 protons and 235-92 = 143 neutrons in U-235 but 146 neutrons in U-238.
How is the structure of an atom of uranium 235 different from the structure of an astom of uranium 238?
Uranium-235 has 143 neutrons, uranium-238 has146 neutrons.
How is the structure of an atom or uranium 235 dfferent to the structure of an atom of uranium 238?
Uranium-235 has 143 neutrons and uranium-238 has 146 neutrons.
Uranium 235 and Uranium 238 are said to be what kind of radioactivity?
Uranium 235 and uranium 238 are especially alpha particles emitters. They are natural radioactive isotopes.
Uranium-235 and uranium-238 are different?
Uranium-235 and uranium-238 are different isotopes of the element uranium. They have different mass numbers due to different numbers of neutrons.
What letter would a chemist use in front of 235 or 238?
U from uranium235U and 238U (recommended); also possible U-235 and U-238 or uranium-235 and uranium-238.
What are the half lives for uranium-235 and uranium-238?
703, 800,000
How much uranium-235 is typically found in uranium ore when it is mined from the ground?
Uranium-235 is found in nature at about 0.7% concentration to uranium-238.
How many neutrons are in uranium 235 and uranium 238 respectively?
143 & 146
