Excel does not have a stuff diagram chart option in the charts. But, we can create a stiff diagram in Excel by using a scatterplot chart and freeform diagram in the shapes tool. Tweaking a bit of coloring of the chart will give us the perfect stiff diagram. Here's how -
Step 1: Enter the values of cations and anions. Use the anion values in negative as shown below.
Step 2: Select 1, 3, and 5 (press Ctrl key, so select cells individually) and copy (ctrl+c).
Step 3: Right click on empty cell -> Paste special -> Transpose
Step 4: Select the data in this table (2, 3, 4)
Step 5: Now go to Insert -> Charts -> Insert Scatter
Step 6: Now assign the data labels by the values in the first table. Select the blue dots by click -> right click -> format data labels.
Step 7: Select value from cells and then provide the range of cation names
Step 8: Format Data Labels -> Size and Properties -> Text Direction -> Rotate 90 degree
Step 9: Select free form diagram from Insert -> Shapes -> Freeform. Click on the dots to connect them into a shape as below.
Step 10: Remove the gridlines. Copy the chart and paste as an image. Then Format -> Rotate 90 degree.
To delete the point colors, right click on them and select color as white.
You can also add a horizontal axis to the chart by right click -> axes -> Primary horizontal axis.