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Unit Test - Question 21 | TX-Integrated Physics and Chemistry A-CR | Revolt
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TX-Integrated Physics and Chemistry A-CR
Unit Test
Question 21
21
Quiz
Multiple Choice
Unit Test
Question 21 of 25 • TX-Integrated Physics and Chemistry A-CR
Which element has a complete valence electron shell?
Answer
A
selenium (Se)
B
oxygen (O)
C
fluorine (F)
D
argon (Ar)
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