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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.",
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{
"fragment_index": 2,
"text_description": "Four valence electrons mean four empty spots.",
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{
"fragment_index": 3,
"text_description": "Sharing these electrons forms covalent bonds.",
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]
},
{
"slide": 2,
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"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.",
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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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{
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"text_description": "Single Bond\n1 shared electron pair joins atoms.\nExample : \\(CH_4\\)\nLongest & weakest covalent bond.",
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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.",
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"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.",
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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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"fragment_index": -1,
"text_description": "Key Takeaways\nThank You!\nWe hope you found this lesson informative and engaging.",
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},
{
"fragment_index": 1,
"text_description": "Recap: Carbon has four valence electrons and shares them.",
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},
{
"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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}
]
}
]