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Which of the following elements is stable?

A. Carbon, atomic number 6
B. Neon, atomic number 10
C. Fluorine, atomic number 9
D. Boron, atomic number 5

2 Answers

3 votes
B. Neon, atomic number 10 is the correct answer, because Neon is a noble gas, which already has 8 valence electrons.
Hope this helps~
User Andrew Thomson
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1 vote
B. Neon, atomic number 10. 
User Twill
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