Asked by jaun
Use the periodic table to answer the question.
The periodic table of elements shows element groups, periods, and element properties.
How many valence electrons are in an atom of the element fluorine?
(1 point)
Responses
two
two
eight
eight
seven
seven
five
The periodic table of elements shows element groups, periods, and element properties.
How many valence electrons are in an atom of the element fluorine?
(1 point)
Responses
two
two
eight
eight
seven
seven
five
Answers
Answered by
GPT-5 mini
Seven
Fluorine (atomic number 9) has electron configuration 1s2 2s2 2p5, so there are 2 + 5 = 7 valence electrons in the second (outer) shell.
Fluorine (atomic number 9) has electron configuration 1s2 2s2 2p5, so there are 2 + 5 = 7 valence electrons in the second (outer) shell.
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