Question

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Answer 1

HOPE IT WILL BE HELPFUL FOR U....

Answer 2

Explanation:

for isotope I am picking up Carbon

C¹² atom = 1s² 2s² 2p⁶ 3s²

C¹³ atom = 1s² 2s² 2p⁶ 3s² 3p¹

for isobar I am picking up potassium 19K⁴⁰ and 20Ca⁴⁰

K⁴⁰= 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁰

Ca⁴⁰= 1s2 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁰