Question

the electronic configuration of carbon (c) is:

1. $1s^22p^4$
2. $1s^22p^6$
3. $1s^22s^22p^4$
4. $1s^22s^22p^2$

Explanation:

Carbon has an atomic number of 6, meaning it has 6 electrons. The electron configuration follows the Aufbau principle. The 1s orbital holds 2 electrons, 2s holds 2, and 2p holds the remaining 2 (since \(2 + 2+ 2 = 6\)). So the correct configuration is \(1s^2 2s^2 2p^2\), which matches option 4.

Answer:

1. \(1s^22s^22p^2\)