Question

Which of the following is a property of isotopes? * A.They have the same number of electrons. B.They have different numbers of protons. C.They have different chemical properties. D.They have the same mass number.

Answer 1

Answer:

Option A

Explanation:

Isotopes of an element have similar chemical but different physical properties. Isotopes of an element have same atomic number but different mass number. Hence, they have same number of electrons. Chemical properties are related to the number of valence electrons. Thus, isotopes have similar chemical properties. Physical properties are related to atomic mass. Isotopes of an element have different mass number. Hence, they have different physical properties.

Answer 2

answer is (a)

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