A period on the periodic table is a horizontal row. The atoms in this row show a trend in their width, and in the amount of work needed to make them an ion, among the fe â¦ w other similarities.
The x-axis and y-axis Remembered! The x-axis and y-axis are two lines that create the coordinate plane. The x-axis is a horizontal line and the y-axis is a vertical line. I'm sure you've heard that a million times, but it might hard for you to remember which one is which. Here is a little trick to help you remember...
X-axis (mark on coordinate plane below. Draw as a man running across the line, remind them you walk into a building first before going up or down the elevator) the horizontal line on a coordinate plane where points are plotted moving left and right. Y-axis (mark on the coordinate plane below. Draw an uppercase Y on top of the plane, itâs tail will create the axis. Remind students that you go into a building first, before going up or down the elevator) the vertical line on a coordinate plane where points are plotted moving up and down.