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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.

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Jamal Ahmed

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3y ago
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12y ago

The 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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AnswerBot

6mo ago

The molar mass of uranium-238 (U-238) is approximately 238.05 g/mol, while the molar mass of uranium-235 (U-235) is approximately 235.04 g/mol.

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Q: What are the molar masses of uranium -238 and uranium -235?
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How is the structure of an atom or uranium 235 dfferent to the structure of an atom of uranium 238?

The main difference between uranium-235 and uranium-238 is their atomic masses. Uranium-235 has 235 atomic mass units (AMU) while uranium-238 has 238 AMU. This difference in mass is due to the number of neutrons in the nucleus of each isotope.


Are uranium 235 and uranium 238 said to be radioactive molecules since they have the same number of protons but different numbers of neutrons?

Uranium-235 and uranium-238 are not considered molecules, they are isotopes of uranium. Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons. Both uranium-235 and uranium-238 are radioactive isotopes, meaning they spontaneously decay and emit radiation.


Uranium -235 and uranium -238 are different of uranium?

Uranium-235 and uranium-238 are isotopes of uranium, meaning they have the same number of protons but different numbers of neutrons. Uranium-235 is used in nuclear reactors and weapons due to its ability to sustain a nuclear chain reaction, while uranium-238 is more abundant in nature but less useful for these purposes.


Write the full atomic symbols for uranium 235 and 238?

The full atomic symbols for uranium are: Uranium-235: ^235U Uranium-238: ^238U


How is the structure of an atom of uranium 235 different from the structure of an astom of uranium 238?

The main difference is in the number of neutrons present in the nucleus. Uranium-235 has 143 neutrons, while uranium-238 has 146 neutrons. This leads to differences in their relative abundance and stability.

Related questions

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.


How is the structure of an atom or uranium 235 dfferent to the structure of an atom of uranium 238?

The main difference between uranium-235 and uranium-238 is their atomic masses. Uranium-235 has 235 atomic mass units (AMU) while uranium-238 has 238 AMU. This difference in mass is due to the number of neutrons in the nucleus of each isotope.


What are the similarities and differences between the isotopes uranium 235 and uranium 238?

Similarities: Both uranium-235 and uranium-238 are isotopes of uranium, meaning they have the same number of protons but different numbers of neutrons. They are both radioactive and can undergo nuclear fission. Differences: Uranium-235 is the primary isotope used for nuclear fuel and weapons due to its higher susceptibility to fission compared to uranium-238. Uranium-238 is more abundant in nature, constituting over 99% of natural uranium, while uranium-235 is less common.


What letter would a chemist use in front of 235 or 238?

A chemist would use the letter "U" in front of 235 or 238 to represent uranium isotopes 235 and 238.


Are uranium 235 and uranium 238 said to be radioactive molecules since they have the same number of protons but different numbers of neutrons?

Uranium-235 and uranium-238 are not considered molecules, they are isotopes of uranium. Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons. Both uranium-235 and uranium-238 are radioactive isotopes, meaning they spontaneously decay and emit radiation.


Uranium -235 and uranium -238 are different of uranium?

Uranium-235 and uranium-238 are isotopes of uranium, meaning they have the same number of protons but different numbers of neutrons. Uranium-235 is used in nuclear reactors and weapons due to its ability to sustain a nuclear chain reaction, while uranium-238 is more abundant in nature but less useful for these purposes.


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 are the similarities and differences between the isotopes uranium-235 and uranium-238?

Both uranium-235 and uranium-238 are isotopes of uranium, with the same chemical properties but different atomic masses. The main difference is that uranium-235, a fissile isotope, is used in nuclear reactors and weapons due to its ability to sustain a nuclear chain reaction, while uranium-238 is not fissile. Both isotopes are radioactive and decay over time, with uranium-238 having a longer half-life compared to uranium-235.


Write the full atomic symbols for uranium 235 and 238?

The full atomic symbols for uranium are: Uranium-235: ^235U Uranium-238: ^238U


Which is more explosive uranium-238 or uranium-235?

Uranium-235 is more explosive than uranium-238. This is because uranium-235 is fissile, meaning it can sustain a chain reaction of nuclear fission, which releases a large amount of energy. Uranium-238 is not fissile and requires a neutron source to undergo fission.


How is the structure of an atom of uranium 235 different from the structure of an astom of uranium 238?

The main difference is in the number of neutrons present in the nucleus. Uranium-235 has 143 neutrons, while uranium-238 has 146 neutrons. This leads to differences in their relative abundance and stability.