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Moving left to right in the second perio...

Moving left to right in the second period, number of valence electrons ……....... [increases from 1 to 4/ increases from 1 to 7]

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To solve the question regarding the number of valence electrons in the second period of the periodic table, we will analyze the elements present in that period and their corresponding valence electrons. ### Step-by-Step Solution: 1. **Identify the Elements in the Second Period**: The second period of the periodic table includes the following elements: - Lithium (Li) - Beryllium (Be) ...
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