2 of 52 of 5 Items
Question
When moving across a period from left to right in the periodic table (excluding transition elements) which trend occurs?(1 point)
Responses
Valence electrons increase by one.
Valence electrons increase by one.
Valence electrons decrease by one.
Valence electrons decrease by one.
The energy levels increase by one.
The energy levels increase by one.
The energy levels decrease by one.
1 answer
When moving across a period from left to right in the periodic table (excluding transition elements), the correct trend is:
Valence electrons increase by one.
As you move across a period, each successive element has one more valence electron than the previous one.
1 answer
1 answer
1 answer
1 answer