Question

Isotopes of chlorine have the same number of electrons but differ in the number of neutrons . give reason​

Answer 1

Answer:

isotopes means having same atomic number but different mass number. atomic number depends on electrons but mass number depends on protons + neutrons. now isotopes of chlorine will have same number of electrons and protons but for different mass number, the number of neutrons will differ.

Answer 2

As the mass numbers are different.

Explanation:

Isotopes of an element have same number of protons but different number of neutrons. Which means isotopes of an element have same atomic number but different mass number.

Atomic number is equal to the number of protons or the number of electrons for a neutral atom and is specific to a particular element.

Mass number is the sum of number of protons and the number of neutrons.

Thus as isotopes of an element have same atomic number , they have same number of electrons and protons. As they have different mass number, the number of neutrons will be different.

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