// Numbas version: finer_feedback_settings
{"name": "Neutrons", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"statement": "<p>In general, an atom is made of protons, neutrons and electrons.</p>", "functions": {}, "parts": [{"useCustomName": false, "unitTests": [], "variableReplacementStrategy": "originalfirst", "gaps": [{"useCustomName": false, "mustBeReducedPC": 0, "variableReplacementStrategy": "originalfirst", "notationStyles": ["plain", "en", "si-en"], "showCorrectAnswer": true, "unitTests": [], "customMarkingAlgorithm": "", "allowFractions": false, "customName": "", "marks": 1, "variableReplacements": [], "correctAnswerStyle": "plain", "type": "numberentry", "correctAnswerFraction": false, "showFractionHint": true, "mustBeReduced": false, "extendBaseMarkingAlgorithm": true, "minValue": "{m}-{n}", "scripts": {}, "showFeedbackIcon": true, "maxValue": "{m}-{n}"}], "scripts": {}, "showCorrectAnswer": true, "type": "gapfill", "marks": 0, "prompt": "<p>Consider the element $^\\var{m}_\\var{n}X$; how many neutrons does $X$ have?</p>\n<p>[[0]]</p>", "variableReplacements": [], "customName": "", "extendBaseMarkingAlgorithm": true, "customMarkingAlgorithm": "", "showFeedbackIcon": true, "sortAnswers": false}], "preamble": {"js": "", "css": ""}, "variablesTest": {"condition": "", "maxRuns": 100}, "tags": [], "name": "Neutrons", "rulesets": {}, "advice": "<p>The video below explains how to carry out similar problems.</p>\n<p><iframe width=\"854\" height=\"480\" src=\"https://www.youtube.com/embed/Oy-cy-3uCIk\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" modestbranding=\"\"></iframe></p>", "variables": {"m": {"name": "m", "group": "Ungrouped variables", "description": "<p>Atomic mass = atomic number + number of neutrons</p>\n<p>Maximum value is set as 118 (max number of protons) + 176 = 294 (max atomic mass for oganesson)</p>", "templateType": "anything", "definition": "n+random(1..176)"}, "n": {"name": "n", "group": "Ungrouped variables", "description": "<p>Atomic number: number of&nbsp;protons&nbsp;(118 is the maximum number, corresponding to<a href=\"https://en.wikipedia.org/wiki/Oganesson\" title=\"\">oganesson</a>).</p>", "templateType": "anything", "definition": "random(1..118)"}}, "extensions": [], "metadata": {"description": "<p>Basic solving of linear equations</p>", "licence": "Creative Commons Attribution 4.0 International"}, "variable_groups": [], "ungrouped_variables": ["n", "m"], "type": "question", "contributors": [{"name": "Mario Orsi", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/427/"}, {"name": "Katie Lester", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/586/"}]}]}], "contributors": [{"name": "Mario Orsi", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/427/"}, {"name": "Katie Lester", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/586/"}]}