as you move from left to right across the periodic table, the number of valence electrons in an atom…

as you move from left to right across the periodic table, the number of valence electrons in an atom ____________ by 1. a increases b decreases

as you move from left to right across the periodic table, the number of valence electrons in an atom ____________ by 1. a increases b decreases

Answer

Brief Explanations:

As you move from left - to - right across a period in the periodic table, the atomic number increases by 1 for each element. This results in an increase of one valence electron for each successive element in the period.

Answer:

A. Increases