MATSEC SEC Chemistry Practice Questions - Malta Secondary Education Certificate (SEC) Chemistry - SEC 06 (2026) Exam

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An atom of chlorine has atomic number 17 and mass number 35. How many protons, neutrons and electrons does a neutral chlorine atom contain?

17 protons, 18 neutrons, 17 electrons 17 protons, 35 neutrons, 17 electrons 35 protons, 17 neutrons, 18 electrons 18 protons, 17 neutrons, 17 electrons

Correct Answer:

17 protons, 18 neutrons, 17 electrons

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