Questions: What is the atomic number of the isotope with the symbol ^17 mathrmCl^17 ?

What is the atomic number of the isotope with the symbol ^17 mathrmCl^17 ?
Transcript text: What is the atomic number of the isotope with the symbol ${ }^{17} \mathrm{Cl}^{17}$ ? Multiple Choice 17 18 35.45 37
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Solution

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Solution Steps

Step 1: Understanding the Isotope Notation

The notation \({ }^{17} \mathrm{Cl}^{17}\) represents an isotope of chlorine. In this notation:

  • The superscript (17) indicates the mass number, which is the sum of protons and neutrons.
  • The subscript (which is not explicitly given here but is implied) would be the atomic number, which is the number of protons.
Step 2: Identifying the Atomic Number

Chlorine (Cl) has an atomic number of 17, which means it has 17 protons. The atomic number is a unique identifier for each element and does not change between isotopes.

Final Answer

The atomic number of the isotope \({ }^{17} \mathrm{Cl}^{17}\) is: \[ \boxed{17} \]

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