Which pair of elements are isobars?
Show answer & explanation
Correct answer: B
Explanation
Correct Answer: Option 2 (Argon and Calcium)
Explanation:
Isobars are elements that have the same mass number but different atomic number. Argon (Ar-40) and calcium (Ca-40) both have a mass number of 40, so they are isobars.
Additional Facts:
Isotopes have the same atomic number but different mass numbers.
Isotopes have different chemical properties because their atomic numbers differ.
Ar-40 and Ca-40 are prime examples of isobars.
Possible Questions for the Upcoming Exam:
What are isobars?
(Answer: Elements with the same mass number, different atomic number)
What are isotopes?
(Answer: Same atomic number, different mass number)
Give an example of an isobar.
(Answer: Ar-40 and Ca-40)