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题目
CHEM1012 (L2) Online Quiz #1
简答题
How many valence electrons does an arsenic (As) atom have? (Input number only.)
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标准答案
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思路分析
The question asks for the number of valence electrons in arsenic (As).
First, identify arsenic's position in the periodic table: it is in group 15 (V) and period 4, which ty......Login to view full explanation登录即可查看完整答案
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为了让更多留学生在备考与学习季更轻松,我们决定将Gold 会员限时免费开放至2025年12月31日!