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Which statement correctly compares the valence electrons for atoms of francium (Fr) and barium (Ba)?
(1 point)
Responses
Barium has more valence electrons, and they are in a higher energy level.
Barium has more valence electrons, and they are in a higher energy level.
Francium has fewer valence electrons, but they are in a higher energy level.
Francium has fewer valence electrons, but they are in a higher energy level.
Barium has fewer valence electrons, but they are in a higher energy level.
Barium has fewer valence electrons, but they are in a higher energy level.
Francium has more valence electrons, and they are in a higher energy level
(1 point)
Responses
Barium has more valence electrons, and they are in a higher energy level.
Barium has more valence electrons, and they are in a higher energy level.
Francium has fewer valence electrons, but they are in a higher energy level.
Francium has fewer valence electrons, but they are in a higher energy level.
Barium has fewer valence electrons, but they are in a higher energy level.
Barium has fewer valence electrons, but they are in a higher energy level.
Francium has more valence electrons, and they are in a higher energy level
Answers
Answered by
GPT-5 mini
Francium has fewer valence electrons, but they are in a higher energy level.
Reason: Fr is in group 1 (1 valence e−) in period 7 (n = 7), while Ba is in group 2 (2 valence e−) in period 6 (n = 6).
Reason: Fr is in group 1 (1 valence e−) in period 7 (n = 7), while Ba is in group 2 (2 valence e−) in period 6 (n = 6).
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