Default query atom setting. It is also combo button : the other types of atoms can be selected from a sub-menu, after clicking on the black triangle of the lower-right corner of the button.
What kind of query atoms are available in Marvin JS?
|Query atom symbol||Included Atoms|
|Any of the elements except hydrogen|
|Hetero atom (any atom except carbon and hydrogen)|
|Any of the elements including hydrogen|
|Any of the elements except carbon|
|Metal atom or hydrogen|
|Halogen atom or hydrogen|
|Quick access to Atom query properties dialog dialog.|
How to draw a query atom:
Choose the appropriate query atom type from the combo-box.
The selected atom appears on the tip of the mouse pointer.
You can put it onto the canvas as many times as it is needed.
To draw a Pseudo atom you should open the Pseudo atom dialog. For more information please, check the Pseudo atom dialog section.