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phetsims / isotopes-and-atomic-mass

"Isotopes And Atomic Mass" is an educational simulation in HTML5, by PhET Interactive Simulations.
GNU General Public License v3.0
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Fluorine 18 and 19 should have different amu #88

Closed KatieWoe closed 5 years ago

KatieWoe commented 5 years ago

Test device: Dell Operating System: Win 10 Browser: Chrome Problem description: For https://github.com/phetsims/QA/issues/300 Bot F-18 and F-19 say amu=18.99840 on the isotopes screen. According to Wikipedia F-18 should be 18.0009373(5). Steps to reproduce:

  1. Go to the Isotopes screen
  2. Select F on the periodic table
  3. Select Atomic Mass (amu)
  4. Remove a neutron to compare the amu of F-18 and F-19

Screenshots: amudoesntchange

Troubleshooting information (do not edit):

Name: ‪Isotopes and Atomic Mass‬ URL: https://phet-dev.colorado.edu/html/isotopes-and-atomic-mass/1.1.0-rc.1/phet/isotopes-and-atomic-mass_en_phet.html Version: 1.1.0-rc.1 2019-03-22 21:49:06 UTC Features missing: touch Flags: pixelRatioScaling User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36 Language: en-US Window: 1536x722 Pixel Ratio: 2.5/1 WebGL: WebGL 1.0 (OpenGL ES 2.0 Chromium) GLSL: WebGL GLSL ES 1.0 (OpenGL ES GLSL ES 1.0 Chromium) Vendor: WebKit (WebKit WebGL) Vertex: attribs: 16 varying: 30 uniform: 4096 Texture: size: 16384 imageUnits: 16 (vertex: 16, combined: 32) Max viewport: 16384x16384 OES_texture_float: true Dependencies JSON: {}
jbphet commented 5 years ago

Another good catch. It should now be fixed.

KatieWoe commented 5 years ago

Looks good in 1.1.0-rc.2