{
  "id": "fc129bde-3b4f-57bf-ae96-59ab40add6d1",
  "slug": "s3-1-the-periodic-table-classification-of-elements-sl",
  "title": "S3.1 The periodic table: Classification of elements (SL)",
  "course": "IB Chemistry",
  "level": "SL",
  "syllabusCode": "S3.1",
  "questionCount": 15,
  "page": "https://splycr.com/ib-chemistry/s3-1-the-periodic-table-classification-of-elements-sl",
  "data": "https://splycr.com/library/s3-1-the-periodic-table-classification-of-elements-sl.json",
  "play": "https://splycr.com/?set=fc129bde-3b4f-57bf-ae96-59ab40add6d1",
  "section": {
    "name": "Structure 3: Classification of matter",
    "page": "https://splycr.com/ib-chemistry/classification-of-matter"
  },
  "source": {
    "name": "Biology by Bradford",
    "href": "https://www.biologybybradford.com",
    "note": "Written for the splycr library by Biology by Bradford."
  },
  "questions": [
    {
      "number": 1,
      "question": "Vertical columns of the periodic table?",
      "answer": "Groups",
      "wrongOptions": [
        "Periods",
        "Blocks",
        "Series"
      ]
    },
    {
      "number": 2,
      "question": "Region of the periodic table containing the transition elements?",
      "answer": "d-block",
      "wrongOptions": [
        "s-block",
        "p-block",
        "f-block"
      ]
    },
    {
      "number": 3,
      "question": "Trend in atomic radius across period 3?",
      "answer": "Decreases",
      "wrongOptions": [
        "Increases",
        "Stays constant",
        "Increases then decreases"
      ]
    },
    {
      "number": 4,
      "question": "Atomic radius falls across a period mainly because of increasing…?",
      "answer": "Nuclear charge",
      "wrongOptions": [
        "Shielding",
        "Number of shells",
        "Electron repulsion"
      ]
    },
    {
      "number": 5,
      "question": "Of these isoelectronic ions, which is the largest?",
      "answer": "N³⁻",
      "wrongOptions": [
        "O²⁻",
        "F⁻",
        "Na⁺"
      ]
    },
    {
      "number": 6,
      "question": "General trend in first ionisation energy across a period?",
      "answer": "Increases",
      "wrongOptions": [
        "Decreases",
        "Stays constant",
        "Fluctuates randomly"
      ]
    },
    {
      "number": 7,
      "question": "Down a group, first ionisation energy falls mainly because the outer electron is…?",
      "answer": "Further from the nucleus",
      "wrongOptions": [
        "Closer to the nucleus",
        "More strongly attracted",
        "In a lower level"
      ]
    },
    {
      "number": 8,
      "question": "Most electronegative element?",
      "answer": "Fluorine",
      "wrongOptions": [
        "Oxygen",
        "Chlorine",
        "Nitrogen"
      ]
    },
    {
      "number": 9,
      "question": "Enthalpy change when one mole of gaseous atoms each gain one electron?",
      "answer": "Electron affinity",
      "wrongOptions": [
        "Ionisation energy",
        "Electronegativity",
        "Lattice enthalpy"
      ]
    },
    {
      "number": 10,
      "question": "Products of sodium reacting with water?",
      "answer": "NaOH and H₂",
      "wrongOptions": [
        "NaOH and O₂",
        "Na₂O and H₂",
        "NaH and O₂"
      ]
    },
    {
      "number": 11,
      "question": "Most reactive of these alkali metals with water?",
      "answer": "Rubidium",
      "wrongOptions": [
        "Lithium",
        "Sodium",
        "Potassium"
      ]
    },
    {
      "number": 12,
      "question": "Colour of aqueous potassium iodide after chlorine water is added?",
      "answer": "Brown",
      "wrongOptions": [
        "Colourless",
        "Pale green",
        "Purple"
      ]
    },
    {
      "number": 13,
      "question": "Halogen that can displace neither chloride nor bromide ions from solution?",
      "answer": "Iodine",
      "wrongOptions": [
        "Chlorine",
        "Bromine",
        "Fluorine"
      ]
    },
    {
      "number": 14,
      "question": "Oxide that dissolves in water to form an acidic solution?",
      "answer": "SO₃",
      "wrongOptions": [
        "Na₂O",
        "MgO",
        "CaO"
      ]
    },
    {
      "number": 15,
      "question": "Amphoteric period 3 oxide?",
      "answer": "Al₂O₃",
      "wrongOptions": [
        "MgO",
        "SiO₂",
        "P₄O₁₀"
      ]
    }
  ]
}