Po 221 built

[KatieWoe]

Test device Samsung Operating System Win 11 Browser Firefox Problem description For https://github.com/phetsims/qa/issues/988. It is possible to make Po 221 even though the graph indicates it shouldn't exist. It can either be decayed into or built outright.

Visuals

Troubleshooting information:

!!!!! DO NOT EDIT !!!!! Name: ‪Build a Nucleus‬:‪Build a Nucleus‬ URL: https://phet-dev.colorado.edu/html/build-a-nucleus/1.1.0-rc.1/phet/build-a-nucleus_all_phet.html?stringTest=double Version: 1.1.0-rc.1 2023-09-26 23:04:02 UTC Features missing: applicationcache, applicationcache, touch Flags: pixelRatioScaling User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/118.0 Language: en-US Window: 1536x731 Pixel Ratio: 1.25/1 WebGL: WebGL 1.0 GLSL: WebGL GLSL ES 1.0 Vendor: Mozilla (ANGLE (Intel, Intel(R) HD Graphics Direct3D11 vs_5_0 ps_5_0)) Vertex: attribs: 16 varying: 30 uniform: 4096 Texture: size: 16384 imageUnits: 16 (vertex: 16, combined: 32) Max viewport: 32767x32767 OES_texture_float: true Dependencies JSON: {}

[Luisav1]

Thanks @KatieWoe. The data from the chart is a bit outdated since it was last updated May 2015. But the data in the sim is from February 2022 and is in this spreadsheet: https://docs.google.com/spreadsheets/d/1kVfWNMYeXEo5dAzQUI5ZKyZwIlnLiQkd/edit#gid=1440307797.

I checked with the table there and it seems Po-221 should form. Sorry for the confusion!

Hopefully this clears any other potential similar issues. Closing.

[Luisav1]

This is the spreadsheet we are using and want testing done with: https://docs.google.com/spreadsheets/d/1kVfWNMYeXEo5dAzQUI5ZKyZwIlnLiQkd/edit#gid=1440307797. But when we added the nuclides up to 94 protons (see #42), this spreadsheet wasn't updated. So we need to update the spreadsheet.

[Luisav1]

The spreadsheet is now updated with the AtomIdentifier values up to 94 protons and 146 neutrons.