How many protons does a chlorine atom have?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Discover the NOVA Hunting the Elements Test. Engage with interactive flashcards and multiple choice questions. Prepare effectively for your assessment!

Multiple Choice

How many protons does a chlorine atom have?

Explanation:
Protons determine an element’s identity; the number of protons equals the atomic number. Chlorine has an atomic number of 17, so there are 17 protons in its nucleus. This count stays the same across isotopes (chlorine-35, chlorine-37, etc.), while the number of neutrons changes. In a neutral atom, there would also be 17 electrons. So the correct number of protons is 17.

Protons determine an element’s identity; the number of protons equals the atomic number. Chlorine has an atomic number of 17, so there are 17 protons in its nucleus. This count stays the same across isotopes (chlorine-35, chlorine-37, etc.), while the number of neutrons changes. In a neutral atom, there would also be 17 electrons. So the correct number of protons is 17.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy