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An atom has 17 protons and 18 neutrons.

Which symbol represents that atom, including its mass number?
Question 15 options:


Cl-32


Cl-35


S-34


Ar-33

2 Answers

5 votes
answer is CI-35 (second one)
User AlexSchell
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4 votes

Answer: Cl-35

Step-by-step explanation:

User Trent
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