Question: where are valence electrons in the periodic table
[{'answer': 'the periodic table group', 'provenance': [{'wikipedia_id': '568674', 'title': 'Valence electron', 'start_paragraph_id': 8, 'start_character': 67, 'end_paragraph_id': 8, 'end_character': 91, 'bleu_score': 1.0, 'section': 'Section::::The number of valence electrons.\n'}]}, {'answer': 'With the exception of groups 3 -- 12'}, {'provenance': [{'wikipedia_id': '568674', 'title': 'Valence electron', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 364, 'bleu_score': 0.9084940438173671, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4525221869393446769}, 'section': 'Section::::The number of valence electrons.\n'}]}]