Athanor by arbastro
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The Periodic table plugin

Choose Plugins › Periodic table › Open Periodic table, then pick an element. With atoms selected it changes them; without a selection it inserts the element.

The Periodic table plugin with every element.The Periodic table plugin with every element.

Steps

  1. Choose Plugins in the top bar, then Periodic table › Open Periodic table.
  2. To change atoms, select them first, then pick an element. Without a selection, picking an element inserts it.
  3. Plugins › Periodic table › Search Elements… finds an element by name or symbol.

The elements are colored by block (s, p, d and f). The data is the PubChem periodic table (NIH, public domain).

To change one atom without the window, point at it and type its symbol. See How to change atoms.

Drawing basicsHow to change an atom to another elementPoint at an atom and press its letter (C, N, O, S, P, F, I, H, B or K). For anything else, point and press Enter to type a label such as Cl, Br or OMe, or select atoms and choose an element in View › Periodic table.

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Last updated Nov 12, 2026