To determine the number of protons in an atom given in the notation:
[tex]\[
\begin{array}{c}
235 \\
92
\end{array}
\][/tex]
we should focus on the atomic number, which is the number written at the bottom of the notation. The atomic number represents the number of protons in the nucleus of the atom.
In this case, the notation is:
[tex]\[
\begin{array}{c}
235 \\
92
\end{array}
\][/tex]
The bottom number, 92, is the atomic number. Therefore, the number of protons in this atom is given by this number.
### Step-by-Step Solution
1. Identify the atomic number from the notation.
- The notation is written as:
[tex]\[
\begin{array}{c}
235 \\
92
\end{array}
\][/tex]
- The atomic number is the lower number, which is 92.
2. Conclude that the number of protons is equal to the atomic number.
Hence, the number of protons in the atom is:
[tex]\[
92
\][/tex]
