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When moving across a period from left to right in the periodic table (excluding transition elements) which trend occurs?(1 point)ResponsesValence electrons decrease by one.Valence electrons decrease by one.The energy levels decrease by one.The energy levels decrease by one.Valence electrons increase by one.Valence electrons increase by one.The energy levels increase by one.The energy levels increase by one.

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
1 month ago

When moving across a period from left to right in the periodic table (excluding transition elements), the trend that occurs is that **valence electrons increase by one**. So, the correct response is:

**Valence electrons increase by one.**