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Chemistry 19 Online
OpenStudy (anonymous):

how many valence electrons does a atom of rubidium have? a.one b.five c.six d.37

OpenStudy (anonymous):

please help!

OpenStudy (danjs):

group 1....

OpenStudy (anonymous):

1 valence electron

OpenStudy (anonymous):

1

OpenStudy (danjs):

why is it 1 valence electron? please explain

OpenStudy (anonymous):

because, since it is on the first group, it only has one 's' electron in it's outer energy level, this is the valence electron

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