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MARK SCHEME – AS CHEMISTRY – 7404-1 – JUNE 2022

  • MARK SCHEME – AS CHEMISTRY – 7404-1 – JUNE 2022

  • Exam (elaborations) • 32 pages • 2024
  • Question Marking guidance Additional Comments/Guidelines Mark 01.1 the outer electron is in a higher (energy) level / there is an increase in shielding / the atoms get larger / more shells There is a weaker attraction between the nucleus and the outer electron. Mark independently 1 1 (2 x AO1) Question Marking guidance Additional Comments/Guidelines Mark 01.2 Mg2+(g) → Mg3+(g) + e– Mg2+(g) + e– → Mg3+(g) + 2 e– 1 (AO2) ...
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MARK SCHEME – AS CHEMISTRY – 7404-1 – JUNE 2022.

  • MARK SCHEME – AS CHEMISTRY – 7404-1 – JUNE 2022.

  • Exam (elaborations) • 32 pages • 2024
  • AS CHEMISTRY JUNE 2021 Question Marking guidance Additional Comments/Guidelines Mark 01.1 the outer electron is in a higher (energy) level / there is an increase in shielding / the atoms get larger / more shells There is a weaker attraction between the nucleus and the outer electron. Mark independently 1 1 (2 x AO1) Question Marking guidance Additional Comments/Guidelines Mark 01.2 Mg2+(g) → Mg3+(g) + e– Mg2+(g) + e– → ...
    (0)
  • $10.48
  • + learn more