Answer
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Step 1I'll solve this problem step by step, following the specified LaTeX formatting guidelines:
Step 2: Identify the Atomic Number and Mass Number of Chlorine
- From the periodic table, chlorine (Cl) has: - Atomic number (number of protons) = 17 - Average atomic mass ≈ 35.45 u (unified atomic mass units)
Final Answer
The most common isotopes are chlorine- 35 (18 neutrons) and chlorine- 37 (20 neutrons).
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