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11-03-2016
Chemistry

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How many valence electrons does a fluorine atom contain?
a. 2
b. 5
c. 7
d. 9

Respuesta :

chmvijayouls6d chmvijayouls6d

22-08-2018

F---atomic number 9---1s2 2s2 2p5 -----7 electrons

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