Transcript: Covalent_Bonding_in_Carbon_20250625_095018.html

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    "slide": 1,
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        "text_description": "Carbon’s 4-Valence Electrons\nBohr model of a carbon atom\nBohr Model Shows Carbon’s Valency\nCarbon has 6 electrons: 2 in the first shell and 4 valence electrons in the second.\nWith 4 vacancies, carbon shares these electrons to achieve a stable octet—this is its tetravalency.\nKey Points:",
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        "fragment_index": 1,
        "text_description": "First shell full (2e⁻); no bonding needed there.",
        "image_description": ""
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      {
        "fragment_index": 2,
        "text_description": "Four valence electrons mean four empty spots.",
        "image_description": ""
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      {
        "fragment_index": 3,
        "text_description": "Sharing these electrons forms covalent bonds.",
        "image_description": ""
      }
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  {
    "slide": 2,
    "fragments": [
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        "fragment_index": -1,
        "text_description": "Covalent Bond: The Sharing Deal\nCovalent Bond\nA covalent bond is a link formed when two atoms share one or more pairs of electrons, giving both stable outer shells.",
        "image_description": ""
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  },
  {
    "slide": 3,
    "fragments": [
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        "text_description": "Form Methane Yourself\nDrag each H onto a free orbital around carbon. When four single bonds form, you will model methane \\(CH_4\\).\nDraggable Items\nH\nH\nH\nH\nDrop Zones\nSpot 1\nSpot 2\nSpot 3\nSpot 4\nTip:\nPlace H atoms evenly; carbon needs four single bonds to complete its octet.\nCheck Answers\nResults\nconst draggableItems = document.querySelectorAll('.draggable-item');\n        const dropZones     = document.querySelectorAll('.drop-zone');\n        const checkBtn      = document.getElementById('slide-04-x9b4q2-checkAnswersBtn');\n        const feedbackArea  = document.getElementById('slide-04-x9b4q2-feedbackArea');\n        const feedbackBox   = document.getElementById('slide-04-x9b4q2-feedbackContent');\n        \n        draggableItems.forEach(item=>{\n            item.addEventListener('dragstart',e=>{\n                item.classList.add('opacity-50');\n                e.dataTransfer.setData('text/plain',item.dataset.id);\n            });\n            item.addEventListener('dragend',()=>item.classList.remove('opacity-50'));\n        });\n        \n        dropZones.forEach(zone=>{\n            zone.addEventListener('dragover',e=>e.preventDefault());\n            zone.addEventListener('dragenter',e=>{\n                e.preventDefault();\n                zone.classList.add('border-green-500','bg-green-50');\n            });\n            zone.addEventListener('dragleave',()=>zone.classList.remove('border-green-500','bg-green-50'));\n            zone.addEventListener('drop',e=>{\n                e.preventDefault();\n                zone.classList.remove('border-green-500','bg-green-50');\n                const id=e.dataTransfer.getData('text/plain');\n                const item=document.querySelector(`[data-id=\"${id}\"]`);\n                if(item&&zone.childElementCount===1){\n                    zone.appendChild(item);\n                    zone.querySelector('.text-center').style.display='none';\n                }\n            });\n        });\n        \n        checkBtn.addEventListener('click',()=>{\n            const allFilled=[...dropZones].every(z=>z.querySelector('.draggable-item'));\n            feedbackArea.classList.remove('hidden');\n            feedbackBox.innerHTML=allFilled?\n                '<p class=\"text-green-600 font-semibold\">Great! Carbon now has four single covalent bonds—methane is complete.</p>':\n                '<p class=\"text-red-600 font-semibold\">Some spots are empty. Drag all four H atoms onto carbon to finish \\(CH_4\\).</p>';\n        });",
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  {
    "slide": 4,
    "fragments": [
      {
        "fragment_index": -1,
        "text_description": "Single, Double, Triple Bonds",
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        "text_description": "Single Bond\n1 shared electron pair joins atoms.\nExample : \\(CH_4\\)\nLongest & weakest covalent bond.",
        "image_description": ""
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      {
        "fragment_index": 2,
        "text_description": "Double & Triple Bonds\nDouble : 2 pairs shared, example \\(C_2H_4\\).\nTriple : 3 pairs shared, example \\(C_2H_2\\).\nMore shared pairs ⇒ shorter, stronger bond.",
        "image_description": ""
      },
      {
        "fragment_index": 3,
        "text_description": "Key Similarities\nAll are covalent – electrons are shared, not transferred.\nEach bond helps atoms reach an octet configuration.\nWidely found in carbon compounds, enabling molecular diversity.",
        "image_description": ""
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    ]
  },
  {
    "slide": 5,
    "fragments": [
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        "text_description": "Multiple Choice Question\nQuestion\nWhich molecule contains a double covalent bond?\n1\nCH₄\n2\nC₂H₄\n3\nC₂H₂\nHint:\nCount the bonds between the two carbon atoms—two lines mean a double bond.\nSubmit Answer\nCorrect!\nC₂H₄ (ethene) has one double bond between its carbon atoms. You correctly identified the bond type.\nIncorrect\nRemember: a double bond involves two shared electron pairs between the same atoms. Review and try again.\n// MCQ interaction logic would go here\n        const correctOption = 1;\n        const answerCards = document.querySelectorAll('.answer-card');\n        const submitBtn = document.getElementById('submitBtn');\n        const feedbackCorrect = document.getElementById('feedbackCorrect');\n        const feedbackIncorrect = document.getElementById('feedbackIncorrect');\n        \n        let selectedOption = null;\n        \n        answerCards.forEach((card, index) => {\n            card.addEventListener('click', () => {\n                answerCards.forEach(c => c.classList.remove('border-blue-500', 'bg-blue-50'));\n                card.classList.add('border-blue-500', 'bg-blue-50');\n                selectedOption = index;\n            });\n        });\n        \n        submitBtn.addEventListener('click', () => {\n            if (selectedOption === null) return;\n            \n            if (selectedOption === correctOption) {\n                feedbackCorrect.classList.remove('hidden');\n                feedbackIncorrect.classList.add('hidden');\n            } else {\n                feedbackIncorrect.classList.remove('hidden');\n                feedbackCorrect.classList.add('hidden');\n            }\n        });",
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    "slide": 6,
    "fragments": [
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        "text_description": "Key Takeaways\nThank You!\nWe hope you found this lesson informative and engaging.",
        "image_description": ""
      },
      {
        "fragment_index": 1,
        "text_description": "Recap: Carbon has four valence electrons and shares them.",
        "image_description": ""
      },
      {
        "fragment_index": 2,
        "text_description": "Covalent bonds fill outer shells; no charge transfer occurs.",
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      {
        "fragment_index": 3,
        "text_description": "Carbon forms single, double, and triple bonds, creating diverse compounds.",
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      },
      {
        "fragment_index": 4,
        "text_description": "Electron-dot and structural formulas reveal how atoms share pairs.",
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      }
    ]
  }
]