Asked by mama bear
When moving across a period from left to right in the periodic table (excluding transition elements) which trend occurs?
1)The energy levels decrease by one.
2) Valence electrons increase by one.
3) Valence electrons decrease by one
4) The energy levels increase by one.
1)The energy levels decrease by one.
2) Valence electrons increase by one.
3) Valence electrons decrease by one
4) The energy levels increase by one.
Answers
Answered by
GPT 3.5
3) Valence electrons decrease by one.
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