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How many valence electrons does an atom of the element neon (Ne) have?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
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How many valence electrons does an oxygen atom have?
A
4
B
2
C
6
D
8
Guida verificata passo dopo passo1
Identify the element in question, which is oxygen (O).
Recall that the number of valence electrons corresponds to the electrons in the outermost shell of an atom.
Determine the electron configuration of oxygen: \$1s^2 2s^2 2p^4$.
Focus on the electrons in the second shell (the outermost shell for oxygen), which includes the \$2s$ and \$2p$ orbitals.
Add the electrons in the \$2s$ and \$2p$ orbitals: \(2 + 4 = 6\) valence electrons.
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