{
  "kind": "atomency-assignment-export",
  "version": 1,
  "exportedAt": "2026-05-26T00:00:00.000Z",
  "source": "Atomency Learning Plan + Clever Deployment Guide",
  "url": "https://atomency.com/lab.html?assign=N4IgbiBcDMA0IBcCWCA2BTKIByBXAxhgIYBOABACLr5ECeZRAdgCZkASRqAZgLQAySLpnhJGAZwQkCyAPbisAVTHoyCABYrGBYuQC2M5rgyqZZfHMbUEZMbV0AjGajNqmAc3RjYZZtTqraAAd0byZWV24eVEEVdDAkX0Z8dAA6EHgJEiR8BCguTmV4ZF10EgBZUSgtVFR4LhkSXQUSVCqjWpBGNzExKABtEDYAZR4ABSGARh4ADhAAXSKiMQBrXsg+0FzIEFEAR1wkElp0kGYsLUJ0UhPArD4iXCS1MjxL0ko-ejCzGV1A0hUnECrm89nQCCIoRYZDcRF0uiIZiWnjSAF9YJssMwiBCeBD7BgTmdtgAlagNVhIMQyBAyYLeXw0egIIIhFzuFSiMgInpkLQOUrefCuLqcxgMWm6bJ83ACkhQ8KcXjRIRkOIJdBJVIgdGY7b80rZIlYYAAHRAgRIv0CCHNkHNAHVXNZgiRkoxrDIuAwbHDAsYSOgEaIxAwuAhSqoAO6mCLKpBgTwAfnNsHNTDEUdKdoATABWNOIJylJjJO0ABhS5ZzhceKDt5oApObUTqMYgsLp8MbtmaLVa-raoOaAJLioGuHyfbxqGRRnymHmh-lg8jfHG-aUryPCjkp9LmumycR2vrmspLUM8AAsoUlW9lq7IPBzqfPl7IAGpbxLN-gZXKX6vgeIAXryjy7qKzB3n+AFPp+ExvqBH48BMMFSv+27kBBIoeMw5oLOm4hZiQFatrqHbbPsnjHj2IAAMIAKIkpA7BzguniqBoU5MtyBjoM4YizvO6g4jKbzkIGRA5EgcihgCPiCEIgYemQXADi4QbZJwZBSTJclJjqcyokAA",
  "tasks": [
    {
      "t": "inquiry",
      "d": "nuclear",
      "p": "Launch Nuclear Decay and compare alpha, beta, and gamma cases."
    },
    {
      "t": "data-table",
      "d": "Record isotope, decay type, change in mass number, change in atomic number, and half-life evidence."
    },
    {
      "t": "numeric",
      "d": "{\"prompt\":\"What percent of a sample remains after two half-lives?\",\"answer\":25,\"tolerance\":0.02,\"unit\":\"%\"}"
    },
    {
      "t": "mc",
      "d": "{\"prompt\":\"In alpha decay, how do mass number and atomic number change?\",\"options\":[\"Mass -4, atomic number -2\",\"Mass +4, atomic number +2\",\"Mass unchanged, atomic number +1\",\"Mass -1, atomic number unchanged\"],\"answer\":0}"
    },
    {
      "t": "question",
      "d": "CER: How does the decay model show that nuclear reactions are different from chemical reactions?"
    }
  ],
  "config": {
    "v": 3,
    "title": "Nuclear Decay and Half-Life",
    "instructions": "Use the nuclear module to connect symbol changes, decay type, and half-life evidence.",
    "strict": false,
    "timerMin": null,
    "formUrl": null,
    "ngss": [
      "HS-PS1-8"
    ],
    "tasks": [
      {
        "t": "inquiry",
        "d": "nuclear",
        "p": "Launch Nuclear Decay and compare alpha, beta, and gamma cases."
      },
      {
        "t": "data-table",
        "d": "Record isotope, decay type, change in mass number, change in atomic number, and half-life evidence."
      },
      {
        "t": "numeric",
        "d": "{\"prompt\":\"What percent of a sample remains after two half-lives?\",\"answer\":25,\"tolerance\":0.02,\"unit\":\"%\"}"
      },
      {
        "t": "mc",
        "d": "{\"prompt\":\"In alpha decay, how do mass number and atomic number change?\",\"options\":[\"Mass -4, atomic number -2\",\"Mass +4, atomic number +2\",\"Mass unchanged, atomic number +1\",\"Mass -1, atomic number unchanged\"],\"answer\":0}"
      },
      {
        "t": "question",
        "d": "CER: How does the decay model show that nuclear reactions are different from chemical reactions?"
      }
    ]
  }
}