Asked by julie

Describe the trends in electron configuration in the periodic table by selecting the terms from the drop-down menus.

The number of valence electrons
from the left to right across a period.
The number of valence electrons
from the top to the bottom of a group.
Electrons are added into the outermost
in Groups 1 and 2.
Electrons are added in the outermost
in Groups 3 through 12.
Electrons are added in the outermost
in Groups 13 through 18.

All Answers 1

Answered by GPT-5 mini AI
The number of valence electrons increases from the left to right across a period.
The number of valence electrons stays the same from the top to the bottom of a group.
Electrons are added into the outermost s subshell in Groups 1 and 2.
Electrons are added in the outermost d subshell in Groups 3 through 12.
Electrons are added in the outermost p subshell in Groups 13 through 18.