Question

Which of the following statements is true?

U-235 is an isotope of uranium.
Hydrogen atoms are heavier than uranium atoms.
Fusion reactions require extremely low temperatures.
Chemical energy is the energy inside the nucleus of an atom.

Answer 1

U-235 is an isotope of uranium

Step-by-step explanation:

The most stable form of uranium isotopes is 235. (0.7198–0.7202%)

Answer 2

U-235 is a isotope of Uranium

Step-by-step explanation:

We know, Uranium is naturally occurring element that has radioactive nature and has no stable isotope. Uranium is made up of 3 major isotopes Which are U-238 found in 99.27–99.27% natural abundance, U-235 found in 0.72% and U-234 found in 0.0051% abundance.

The list of isotopes is Uranium-233, Uranium-234 and Uranium-235. Hence, U-235 is a isotope of Uranium is the correct statement.