1. Electron Configuration of Carbon:
* Carbon has an atomic number of 6, meaning it has 6 electrons.
* Its electron configuration is 1s² 2s² 2p².
2. Second Energy Level:
* The second energy level (n=2) contains the 2s and 2p sublevels.
* The 2s sublevel can hold 2 electrons, and it is fully filled with 2 electrons in carbon.
* The 2p sublevel can hold 6 electrons (2 electrons per orbital, and there are 3 p orbitals). Carbon has 2 electrons in its 2p sublevel.
3. Calculation:
* Total electrons in the second energy level: 2 (2s) + 2 (2p) = 4 electrons
* Maximum capacity of the second energy level: 2 (2s) + 6 (2p) = 8 electrons
* Percentage filled: (4 electrons / 8 electrons) * 100% = 50%
Therefore, the second energy level of carbon is 50% filled.
