Starting with Element 1, the periodic table adds one proton at a time. It counts up: Element 2 (two protons), Element 3 (three protons), etc. When it gets all the way to the right, it returns to the left, just like written text.

Starting with Element 1, the periodic table adds one proton at a time. It counts up: Element 2 (two protons), Element 3 (three protons), etc.

When it gets all the way to the right, it returns to the left, just like written text.

Tags: science chemistry periodic table protons