Pick a box, then step across a period or down a group. The table recolours, both charts redraw, and the panel tells you exactly how far the property moved.
The main group table click a box, or use the move buttons
Fill shows the value, low to high.metalmetalloidnonmetalnoble gas
Two slices through your box the period you are in, and the group
Which property?
Sodiumgroup 1 · period 3 · metal
186pmmetal
Move one step
group 1, period 3
your last move
Start anywhere you like
Sodium is a soft metal with one outer electron. Step right and the atoms shrink. Step down and they grow. Watch the number above change as you move.