Answer:
Isotopes of carbon:(_16^12)C and (_16^13)C12
6C and 13
6C Electronic configuration is 2,4 because both the
atoms have the same atomic number and the same number of electrons as 6.
Isobars:
(_20^40)Ca - 2,8,8,2 as atomic number is 20 and 40
(_80^40)Ar- 2,8,8 as atomic number is 18
Explanation:
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