{
  "id": "a7461051-13f3-519e-9443-7019e4fee292",
  "slug": "s1-3-electron-configurations-sl",
  "title": "S1.3 Electron configurations (SL)",
  "course": "IB Chemistry",
  "level": "SL",
  "syllabusCode": "S1.3",
  "questionCount": 15,
  "page": "https://splycr.com/ib-chemistry/s1-3-electron-configurations-sl",
  "data": "https://splycr.com/library/s1-3-electron-configurations-sl.json",
  "play": "https://splycr.com/?set=a7461051-13f3-519e-9443-7019e4fee292",
  "section": {
    "name": "Structure 1: Models of the particulate nature of matter",
    "page": "https://splycr.com/ib-chemistry/models-of-the-particulate-nature-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": "Bright lines on a black background, produced as excited electrons fall to lower levels?",
      "answer": "Emission spectrum",
      "wrongOptions": [
        "Absorption spectrum",
        "Continuous spectrum",
        "Mass spectrum"
      ]
    },
    {
      "number": 2,
      "question": "In hydrogen's spectrum, lines get closer together at higher energy until they…?",
      "answer": "Converge",
      "wrongOptions": [
        "Diverge",
        "Overlap",
        "Split"
      ]
    },
    {
      "number": 3,
      "question": "Visible lines in hydrogen's spectrum come from transitions down to which level?",
      "answer": "n = 2",
      "wrongOptions": [
        "n = 1",
        "n = 3",
        "n = ∞"
      ]
    },
    {
      "number": 4,
      "question": "Transitions down to n = 1 in hydrogen emit radiation in which region?",
      "answer": "Ultraviolet",
      "wrongOptions": [
        "Infrared",
        "Visible",
        "Microwave"
      ]
    },
    {
      "number": 5,
      "question": "A higher-energy photon has a higher frequency and a shorter…?",
      "answer": "Wavelength",
      "wrongOptions": [
        "Amplitude",
        "Speed",
        "Period"
      ]
    },
    {
      "number": 6,
      "question": "Maximum number of electrons in a d sublevel?",
      "answer": "10",
      "wrongOptions": [
        "6",
        "14",
        "5"
      ]
    },
    {
      "number": 7,
      "question": "Maximum number of electrons in the n = 3 energy level?",
      "answer": "18",
      "wrongOptions": [
        "8",
        "32",
        "9"
      ]
    },
    {
      "number": 8,
      "question": "Rule that an orbital holds at most two electrons, with opposite spins?",
      "answer": "Pauli exclusion principle",
      "wrongOptions": [
        "Hund's rule",
        "Aufbau principle",
        "Heisenberg principle"
      ]
    },
    {
      "number": 9,
      "question": "Electrons occupy degenerate orbitals singly, spins parallel, before pairing: this is…?",
      "answer": "Hund's rule",
      "wrongOptions": [
        "Pauli exclusion principle",
        "Aufbau principle",
        "Octet rule"
      ]
    },
    {
      "number": 10,
      "question": "Filling orbitals in order of increasing energy follows the…?",
      "answer": "Aufbau principle",
      "wrongOptions": [
        "Hund's rule",
        "Pauli exclusion principle",
        "Octet rule"
      ]
    },
    {
      "number": 11,
      "question": "Sublevel filled immediately after 4s?",
      "answer": "3d",
      "wrongOptions": [
        "4p",
        "4d",
        "3p"
      ]
    },
    {
      "number": 12,
      "question": "Unpaired electrons in a ground-state nitrogen atom?",
      "answer": "3",
      "wrongOptions": [
        "1",
        "2",
        "5"
      ]
    },
    {
      "number": 13,
      "question": "Condensed electron configuration of iron (Z = 26)?",
      "answer": "[Ar] 3d⁶ 4s²",
      "wrongOptions": [
        "[Ar] 3d⁸",
        "[Ar] 3d⁷ 4s¹",
        "[Ar] 4s² 4p⁶"
      ]
    },
    {
      "number": 14,
      "question": "Condensed electron configuration of chromium (Z = 24)?",
      "answer": "[Ar] 3d⁵ 4s¹",
      "wrongOptions": [
        "[Ar] 3d⁴ 4s²",
        "[Ar] 3d⁶",
        "[Ar] 4s² 4p⁴"
      ]
    },
    {
      "number": 15,
      "question": "Electron configuration of the Fe²⁺ ion (Z = 26)?",
      "answer": "[Ar] 3d⁶",
      "wrongOptions": [
        "[Ar] 3d⁴ 4s²",
        "[Ar] 3d⁸",
        "[Ar] 3d⁵ 4s¹"
      ]
    }
  ]
}