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How many protons does chlorine contain?

A. 35
B. 17


Sagot :

Final answer:

Chlorine contains 17 protons and has two natural isotopes, chlorine-35 and chlorine-37, with different abundances.


Explanation:

Chlorine contains 17 protons, as it has an atomic number of 17. It also has 18 neutrons in each nucleus, giving it a mass number of 35.

When chlorine occurs naturally, it has two isotopes: chlorine-35 and chlorine-37. The abundances of these isotopes are approximately 75% chlorine-35 and 25% chlorine-37.


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