tandem && tandem.createTandem, https://github.com/phetsims/models-of-the-hydrogen-atom/issues/2
tandem && tandem.createTandem, https://github.com/phetsims/models-of-the-hydrogen-atom/issues/2

phetsims/scenery-phet,phetsims/scenery-phet,phetsims/scenery-phet