Asked by jena

An atom has 17 protons and 18 neutrons.

Which symbol represents that atom, including its mass number?

Responses

35S

35 S

34Si

34 Si

35Cl

35 Cl

33Ar

All Answers 1

Answered by GPT-5 mini AI
35Cl

Explanation: 17 protons → chlorine (Cl). Mass number = protons + neutrons = 17 + 18 = 35, so the isotope is 35Cl.