Multiple Choice
How many valence electrons do noble gases typically have?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In which orbitals are the valence electrons of carbon (C) located?
A
2d and 2f orbitals
B
2s and 2p orbitals
C
1s and 2s orbitals
D
3s and 3p orbitals
Verified step by step guidance1
Identify the atomic number of carbon, which is 6. This means carbon has 6 electrons in total.
Recall the order of filling orbitals according to the Aufbau principle: electrons fill orbitals starting from the lowest energy level to higher ones.
Write the electron configuration for carbon: the first two electrons fill the 1s orbital, the next two fill the 2s orbital, and the remaining two electrons go into the 2p orbitals.
Understand that valence electrons are the electrons in the outermost shell (highest principal quantum number, n). For carbon, the outermost shell is n=2.
Therefore, the valence electrons of carbon are located in the 2s and 2p orbitals.
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