Chemistry, 06.07.2019 13:30 maelonramirez

How many valence electrons are in an atom of strontium (sr)? consult the periodic table. a. 5 b. 2 c. 47.90 d. 22

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How many valence electrons are in an atom of strontium (sr)? consult the periodic table. a. 5 b. 2...