Question

difference between an Argon atom with a mass number of 38 (Ar-38) and another Argon atom with a mass number of 45 (Ar-45)?

Answer 1

The difference between Argon-38 and Argon - 45 is the number of neurons in their nuclei.

What is Isotope?

Isotopes are two or more types of atoms of the same element that have the same atomic number but differs in mass numbers due to different numbers of neutrons in their nuclei.

Argon atom with a mass number of 38 (Ar-38) - number of neutrons = 20

Argon atom with a mass number of 45 (Ar-45) - number of neutrons = 27

Thus, the difference between Argon-38 and Argon - 45 is the number of neurons in their nuclei.

Learn more about isotopes here: brainly.com/question/364529
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