Multiple Choice Question Answer XXXXIII — task. Science CBSE, Class 9.

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1. An atom which as a mass number of 14 & 8 neutrons is an -

Isotope of carbon
Isobar of carbon
Isotope of oxygen
Isobar of oxygen

2. The electronic configuration of $Mn^+{^2}$ is -

2, 8, 13
2, 8, 11, 2
2, 8, 13, 2
None of these

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