What information on the periodic table is used to complete electron dot diagrams? the number before the a at the top of a column shows how many dots to draw in the diagram. the number before the b at the top of a column shows how many dots to draw in the diagram. the number at the left of each row shows the number of valence electrons that are in atoms of elements in that row. the number at the left of each row shows how many dots to draw above the symbol for elements in that row.

The number before the A at the top of a column shows how many dots to draw in the diagram.

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

c8h10 is your answerr