Ecrit par ✅ Quiz : Structure De L Atome Et Du Noyau
Ce quiz contient 20 questions.
Note : Placeholder pour valider la structure. Le JSON converti est conservé ci-dessous pour l’import final des vraies questions Tutor LMS.
JSON Tutor LMS-ready
{
"quiz_title": "Structure De L Atome Et Du Noyau",
"quiz_slug": "01_structure_de_l_atome_et_du_noyau_quiz",
"quiz_description": "Quiz Edu509 : Structure De L Atome Et Du Noyau",
"quiz_settings": {
"time_limit": {
"time_value": 0,
"time_type": "minutes"
},
"hide_quiz_time_display": false,
"attempts_allowed": 0,
"passing_grade": 70,
"max_questions_for_answer": 0,
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"short_answer_characters_limit": 200
},
"questions": [
{
"question_order": 1,
"question_title": "Quel est le nombre de neutrons dans un noyau de potassium-39 \\\\( (^{39}_{19}\\\\mathrm{K}) \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Le nombre de neutrons est \\\\( N = A - Z = 39 - 19 = 20 \\\\).",
"answers": [
{
"answer_title": "20",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "19",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "39",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "18",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 2,
"question_title": "Un noyau d’uranium-238 \\\\( (^{238}_{92}\\\\mathrm{U}) \\\\) subit une désintégration alpha. Quel est le noyau fils produit ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Après émission d’une particule alpha (\\\\( ^{4}_{2}\\\\mathrm{He} \\\\)), \\\\( A = 238 - 4 = 234 \\\\) et \\\\( Z = 92 - 2 = 90 \\\\), donc le noyau fils est \\\\( ^{234}_{90}\\\\mathrm{Th} \\\\).",
"answers": [
{
"answer_title": "\\\\( ^{234}_{90}\\\\mathrm{Th} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( ^{236}_{90}\\\\mathrm{Th} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( ^{238}_{90}\\\\mathrm{Th} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( ^{234}_{92}\\\\mathrm{U} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 3,
"question_title": "Quelle(s) affirmation(s) est/sont vraie(s) concernant les isotopes ?",
"question_type": "multiple_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Les isotopes ont le même nombre de protons (même élément) et des propriétés chimiques similaires, mais un nombre de neutrons différent.",
"answers": [
{
"answer_title": "Ils ont le même nombre de protons.",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "Ils ont le même nombre de neutrons.",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "Ils ont le même nombre de masse.",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "Ils ont des propriétés chimiques similaires.",
"is_correct": true,
"answer_order": 4
}
]
},
{
"question_order": 4,
"question_title": "Quelle est l’énergie de liaison totale (en MeV) d’un noyau de deutérium \\\\( (^{2}_{1}\\\\mathrm{H}) \\\\) sachant que \\\\( m_p = 1{,}007 276\\\\ \\\\mathrm{u} \\\\), \\\\( m_n = 1{,}008 665\\\\ \\\\mathrm{u} \\\\), \\\\( m_{\\\\text{noyau}} = 2{,}013 553\\\\ \\\\mathrm{u} \\\\) et \\\\( 1\\\\ \\\\mathrm{u} \\\\times c^2 = 931{,}5\\\\ \\\\mathrm{MeV} \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Défaut de masse : \\\\( \\\\Delta m = 1{,}007 276 + 1{,}008 665 - 2{,}013 553 = 0{,}002 388\\\\ \\\\mathrm{u} \\\\). Énergie de liaison : \\\\( 0{,}002 388 \\\\times 931{,}5 = 2,22\\\\ \\\\mathrm{MeV} \\\\).",
"answers": [
{
"answer_title": "2,22",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "1,11",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "3,00",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "0,78",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 5,
"question_title": "Lors d’une désintégration \\\\( \\\\beta^- \\\\) d’un noyau \\\\( ^{32}_{15}\\\\mathrm{P} \\\\), quel est le noyau fils ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "En \\\\( \\\\beta^- \\\\), \\\\( Z \\\\) augmente de 1, donc \\\\( Z = 16 \\\\), \\\\( A = 32 \\\\). Le noyau fils est \\\\( ^{32}_{16}\\\\mathrm{S} \\\\).",
"answers": [
{
"answer_title": "\\\\( ^{32}_{16}\\\\mathrm{S} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( ^{32}_{14}\\\\mathrm{Si} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( ^{31}_{16}\\\\mathrm{S} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( ^{32}_{15}\\\\mathrm{P} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 6,
"question_title": "Quelle(s) grandeur(s) est/sont conservée(s) lors d’une réaction nucléaire ?",
"question_type": "multiple_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Lors d’une réaction nucléaire, le nombre de masse et le numéro atomique sont conservés, mais pas la masse totale à cause du défaut de masse.",
"answers": [
{
"answer_title": "Le nombre de masse \\\\( (A) \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "Le numéro atomique \\\\( (Z) \\\\)",
"is_correct": true,
"answer_order": 2
},
{
"answer_title": "Le nombre de neutrons seul",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "La masse totale (exactement)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 7,
"question_title": "Un échantillon contient \\\\( N_0 = 8{,}0 \\\\times 10^{20} \\\\) noyaux radioactifs. Sa demi-vie est \\\\( T_{1/2} = 10 \\\\) heures. Combien de noyaux restent après 30 heures ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "En 30 h, il y a 3 demi-vies : \\\\( N = N_0 / 2^3 = 8,0 \\\\times 10^{20} / 8 = 1,0 \\\\times 10^{20} \\\\).",
"answers": [
{
"answer_title": "1,0 \\\\( \\\\times 10^{20} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "2,0 \\\\( \\\\times 10^{20} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "4,0 \\\\( \\\\times 10^{20} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "0,5 \\\\( \\\\times 10^{20} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 8,
"question_title": "Le noyau \\\\( ^{60}_{27}\\\\mathrm{Co} \\\\) subit une désintégration \\\\( \\\\beta^- \\\\). Quelle est l’équation de la réaction ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "En \\\\( \\\\beta^- \\\\), \\\\( Z \\\\) augmente de 1, donc \\\\( ^{60}_{28}\\\\mathrm{Ni} \\\\) est produit avec émission d’un électron \\\\( ^{0}_{-1}e \\\\).",
"answers": [
{
"answer_title": "\\\\( ^{60}_{27}\\\\mathrm{Co} \\\\rightarrow ^{60}_{28}\\\\mathrm{Ni} + ^{0}_{-1}e \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( ^{60}_{27}\\\\mathrm{Co} \\\\rightarrow ^{60}_{26}\\\\mathrm{Fe} + ^{0}_{-1}e \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( ^{60}_{27}\\\\mathrm{Co} \\\\rightarrow ^{60}_{28}\\\\mathrm{Ni} + ^{0}_{+1}e \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( ^{60}_{27}\\\\mathrm{Co} \\\\rightarrow ^{59}_{28}\\\\mathrm{Ni} + ^{1}_{-1}e \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 9,
"question_title": "Quel est le nombre de nucléons dans un noyau de calcium-40 \\\\( (^{40}_{20}\\\\mathrm{Ca}) \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Le nombre de nucléons est le nombre de masse \\\\( A = 40 \\\\).",
"answers": [
{
"answer_title": "40",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "20",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "60",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "18",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 10,
"question_title": "Laquelle des propositions suivantes décrit correctement la radioactivité alpha ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La radioactivité alpha correspond à l’émission d’une particule alpha, soit un noyau d’hélium \\\\( ^{4}_{2}\\\\mathrm{He} \\\\).",
"answers": [
{
"answer_title": "Émission d’un noyau d’hélium \\\\( (^{4}_{2}\\\\mathrm{He}) \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "Émission d’un électron",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "Émission d’un positon",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "Émission d’un neutron",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 11,
"question_title": "Quel est le rapport \\\\( N/Z \\\\) pour le noyau \\\\( ^{56}_{26}\\\\mathrm{Fe} \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Pour \\\\( ^{56}_{26}\\\\mathrm{Fe} \\\\), \\\\( N = 56 - 26 = 30 \\\\), donc \\\\( N/Z = 30/26 = 1,15 \\\\).",
"answers": [
{
"answer_title": "1,15",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "2,15",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "1,00",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "0,46",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 12,
"question_title": "Un noyau de fluor-18 \\\\( (^{18}_{9}\\\\mathrm{F}) \\\\) subit une désintégration \\\\( \\\\beta^+ \\\\). Quel est le noyau fils ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "En \\\\( \\\\beta^+ \\\\), \\\\( Z \\\\) diminue de 1, donc \\\\( Z = 8 \\\\), \\\\( A = 18 \\\\). Le noyau fils est \\\\( ^{18}_{8}\\\\mathrm{O} \\\\).",
"answers": [
{
"answer_title": "\\\\( ^{18}_{8}\\\\mathrm{O} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( ^{18}_{10}\\\\mathrm{Ne} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( ^{17}_{8}\\\\mathrm{O} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( ^{18}_{9}\\\\mathrm{F} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 13,
"question_title": "Quelle(s) particule(s) est/sont émise(s) lors d’une désintégration \\\\( \\\\beta^- \\\\) ?",
"question_type": "multiple_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La désintégration \\\\( \\\\beta^- \\\\) émet un électron et un antineutrino.",
"answers": [
{
"answer_title": "Un électron",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "Un antineutrino",
"is_correct": true,
"answer_order": 2
},
{
"answer_title": "Un proton",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "Un neutron",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 14,
"question_title": "Quelle est la période radioactive \\\\( T_{1/2} \\\\) (en secondes) pour une constante de décroissance \\\\( \\\\lambda = 2,0 \\\\times 10^{-3}\\\\ \\\\mathrm{s}^{-1} \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La période radioactive est \\\\( T_{1/2} = \\\\ln 2 / \\\\lambda = 0,693 / 0,002 = 346\\\\ \\\\mathrm{s} \\\\).",
"answers": [
{
"answer_title": "346",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "693",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "0,0015",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "500",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 15,
"question_title": "Quel est le défaut de masse (en \\\\( \\\\mathrm{u} \\\\)) d’un noyau de lithium-7 \\\\( (^{7}_{3}\\\\mathrm{Li}) \\\\) sachant que \\\\( m_p = 1{,}007 276\\\\ \\\\mathrm{u} \\\\), \\\\( m_n = 1{,}008 665\\\\ \\\\mathrm{u} \\\\), \\\\( m_{\\\\text{noyau}} = 7{,}016 003\\\\ \\\\mathrm{u} \\\\), \\\\( Z = 3 \\\\), \\\\( N = 4 \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Défaut de masse : \\\\( \\\\Delta m = 3 \\\\times 1{,}007 276 + 4 \\\\times 1{,}008 665 - 7,016 003 = 3,021 828 + 4,034 660 - 7,016 003 = 7,056 488 - 7,016 003 = 0,040 485\\\\ \\\\mathrm{u} \\\\).",
"answers": [
{
"answer_title": "0,040 485",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "0,016 003",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "0,025 000",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "0,033 331",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 16,
"question_title": "Lequel des noyaux suivants est un isotope du carbone-12 ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Un isotope du carbone-12 a le même \\\\( Z = 6 \\\\), donc \\\\( ^{14}_{6}\\\\mathrm{C} \\\\) est un isotope du carbone.",
"answers": [
{
"answer_title": "\\\\( ^{14}_{6}\\\\mathrm{C} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( ^{12}_{7}\\\\mathrm{N} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( ^{13}_{7}\\\\mathrm{N} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( ^{12}_{8}\\\\mathrm{O} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 17,
"question_title": "Quelle(s) transformation(s) nucléaire(s) conserve(nt) le nombre de masse \\\\( A \\\\) ?",
"question_type": "multiple_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Les désintégrations \\\\( \\\\beta^- \\\\) et \\\\( \\\\beta^+ \\\\) conservent le nombre de masse \\\\( A \\\\).",
"answers": [
{
"answer_title": "Désintégration \\\\( \\\\beta^- \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "Désintégration \\\\( \\\\beta^+ \\\\)",
"is_correct": true,
"answer_order": 2
},
{
"answer_title": "Désintégration alpha",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "Fission nucléaire",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 18,
"question_title": "Quel est le nombre de protons dans un noyau de cuivre-63 \\\\( (^{63}_{29}\\\\mathrm{Cu}) \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Le nombre de protons est le numéro atomique \\\\( Z = 29 \\\\).",
"answers": [
{
"answer_title": "29",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "63",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "34",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "35",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 19,
"question_title": "Quelle(s) affirmation(s) est/sont vraie(s) concernant la force nucléaire forte ?",
"question_type": "multiple_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La force nucléaire forte agit entre protons et neutrons, elle est très intense à courte distance et attractive.",
"answers": [
{
"answer_title": "Elle agit entre protons et neutrons.",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "Elle est plus forte que la force électrostatique à courte distance.",
"is_correct": true,
"answer_order": 2
},
{
"answer_title": "Elle agit à longue distance.",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "Elle repousse les protons.",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 20,
"question_title": "Un noyau de sodium-24 \\\\( (^{24}_{11}\\\\mathrm{Na}) \\\\) subit une désintégration \\\\( \\\\beta^- \\\\). Quel est le noyau fils ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "En \\\\( \\\\beta^- \\\\), \\\\( Z \\\\) augmente de 1, donc \\\\( ^{24}_{12}\\\\mathrm{Mg} \\\\) est le noyau fils.",
"answers": [
{
"answer_title": "\\\\( ^{24}_{12}\\\\mathrm{Mg} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( ^{24}_{10}\\\\mathrm{Ne} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( ^{23}_{12}\\\\mathrm{Mg} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( ^{24}_{11}\\\\mathrm{Na} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
}
]
}