Multiple Choice
When drawing the Lewis structure for ozone (O3), why do we multiply the number of valence electrons of oxygen by 3?
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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
How many valence electrons does the element neon (Ne) have?
A
2
B
8
C
0
D
6
Verified step by step guidance1
Identify the element in question, which is neon (Ne). Neon is a noble gas located in Group 18 of the periodic table.
Recall that the number of valence electrons corresponds to the electrons in the outermost shell (energy level) of an atom.
Determine the electron configuration of neon: $1s^2 2s^2 2p^6$.
Recognize that the outermost shell for neon is the second shell, which contains the $2s^2$ and $2p^6$ electrons.
Add the electrons in the outermost shell: $2$ (from $2s$) + $6$ (from $2p$) = $8$ valence electrons.
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