The answer is A. Solids only
The main properties of uranium-238 are as follows,
- The uranium-238 have orthorhombic crystal structure.
- The physical state of uranium-238 is solid.
- The uranium-238 have acid base properties.
- The uranium-238 have hard and silver white metal.
- The natural abundance of uranium-238 is 99%
The Atomic mass and atomic weight of uranium-238
- The atomic number of uranium-238 is 92
- The atomic weight of uranium-238 is 238.02
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The most abundant carbon isotope is carbon-12.
The relative atomic mass of carbon is 12.011, which is extremely close to 12.0. This means that the masses C-13, and C-14 are practically negligible when contributing to the relative atomic mass of carbon.
the C-12 isotope makes up 98.9% of carbon atoms, C-13 makes up 1.1% of carbon atoms, and C-14 makes up just a trace of carbon atoms as they are found in nature.