Query Atoms

Default query atom setting. It is also a 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.

The table below lists the available query atoms.

Query atom symbol	Included Atoms
	Any of the elements except hydrogen.
	Heteroatom (any atom except carbon and hydrogen).
	Metal atom.
	Halogen atom.
	Any of the elements including hydrogen.
	Any of the elements except carbon.
	Metal atom or hydrogen.
	Halogen atom or hydrogen.
	Pseudo atom.
	Quick access to Atom Query Properties Dialog.

Draw a Query Atom

1. Choose the appropriate query atom type from the combo box.

2. The selected atom appears on the tip of the cursor.

3. You can put it onto the canvas as many times as it is needed.

{info} To draw a pseudo atom, open the Pseudo atom dialog. For more information, see Pseudo Atom Dialog.