Atomic Radius vs. Atomic Number

Use the data below to create a graph by hand that plots the atomic number (x-axis) and
the atomic radius in picometers (y-axis). When you finish your graph, answer the corresponding
Canvas quiz questions. You will be uploading your graph as a PDF to Canvas.
• Connect each data point to the subsequent point to reveal the shape of the graph.
• Above each point on the graph, write the symbol of the corresponding element.
• Write a descriptive title above the graph.
• Include the units on the x- and y- axes.
Element Symbol Atomic
number (Z)
Atomic radius (pm)
Aluminum Al 118
Argon Ar 71
Beryllium Be 112
Boron B 87
Calcium Ca 194
Carbon C 67
Chlorine Cl 79
Chromium Cr 166
Cobalt Co 152
Copper Cu 145
Fluorine F 42
Helium He 31
Hydrogen H 53
Iron Fe 156
Lithium Li 167
Magnesium Mg 145
Manganese Mn 161
Neon Ne 38
Nitrogen N 56
Nickel Ni 149
Oxygen O 48
Phosphorus P 98
Potassium K 243
Scandium Sc 184
Silicon Si 111
Sodium Na 190
Sulfur S 88
Titanium Ti 176
Vanadium V 171
Zinc Zn 142