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...
XY graphs. On an XY or column graph, when the Y axis spans zero, Prism automatically places a grid line at Y=0. This is easy to remove. Double click on the axis, to bring up Format Axis dialog. At the bottom, you'll see that Prism is configured to plot a grid line at Y=0. Uncheck that option, and the line goes away.