Chapter 30, Problem 49A

To determine

To Explain:

Which isotope has greater number of protons, uranium $-235$ or uranium $-238$ .

Answer to Problem 49A

Bothuranium $-235$ and uranium $-238$ has same number of protons as they are similar elements.

Explanation of Solution

Introduction:

An atom of uranium has electrons $92$ and $92$ protons in its nucleus out of which $6$ are called as valence electrons.

The uranium has a basically a high binding energy.There are of six isotopes of uranium $\left(U-233\right)$ to $\left(U-238\right)$ .

For Uranium $U$ which hasan atomic mass number $\left(A\right)=235$ and Atomic Number $\left(Z\right)=92$ thus it has $92$ protons in its atom.

For $U$ which hasan atomic mass number $\left(A\right)=238$ and Atomic Number $\left(Z\right)=92$ thus it have $92$ protons in its atom. Both the isotopes of uranium has same number of protons as they both are the similar elements.

Conclusion:

Hence,bothuranium- $235$ and uranium- $238$ has same number of protons as they are similar elements.