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Turn your electron configuration notes into a chemistry quiz

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How a chemistry quiz on electron configuration helps you learn it

A chemistry quiz on electron configuration works best when it follows the notes you took in class, because instructors often test the exact exceptions and shorthand they covered. Writing [Ne] 3s² 3p⁵ for chlorine once is easy; recognizing it on a timed exam is harder.

  • Practice writing full and noble gas shorthand configurations for the first 20 elements
  • Check ions such as Fe²⁺ by removing electrons from the highest energy shell first
  • Identify exceptions like chromium and copper, where a half-filled or full d subshell is more stable
  • Count unpaired electrons to apply Hund's rule in multiple-choice questions
Example electron configuration quiz questions
What is the ground-state electron configuration of oxygen (atomic number 8)?1s² 2s² 2p⁴. Eight electrons fill 1s, 2s and 2p in Aufbau order, leaving two unpaired electrons in 2p.
What is the electron configuration of the Fe²⁺ ion?[Ar] 3d⁶. Iron's 4s electrons are removed before its 3d electrons when a cation forms.
How many unpaired electrons does a ground-state chromium atom have?6 unpaired electrons, from [Ar] 3d⁵ 4s¹. A half-filled 3d subshell is more stable, so one electron moves from 4s into 3d.
True or false: in a neutral potassium atom, the 4s orbital fills before the 3d orbital.True. The 4s orbital is lower in energy than 3d in the Aufbau order, so potassium is [Ar] 4s¹.
What is the shorthand electron configuration of chlorine (atomic number 17)?[Ne] 3s² 3p⁵. Neon accounts for 10 electrons, and the remaining 7 fill 3s and 3p.
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Questions from your own material

Upload PDFs, DOCX files, slides or photos of a textbook page. The quiz covers the orbitals and rules your course actually teaches.

Multiple-choice, true/false and short answer

Mix question types so you practice writing configurations, spotting Hund's rule errors and explaining why an exception like chromium behaves differently.

Explanations for every answer

Each question includes a short explanation, so a wrong answer on 3d versus 4s filling becomes a lesson rather than a dead end.

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Choose the question type

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Answer and review

Work through the quiz, read the explanations and save the questions you missed for another round.

Electron configuration questions mix several skills: counting electrons against atomic number, applying the Aufbau order, using noble gas cores and applying Hund's rule to unpaired electrons. A quiz that asks each of these separately shows you which step is breaking down.

DeckOwl builds the quiz from your own material, so the questions match your course rather than a generic chemistry list. Free use is limited to 3 generations per month, and study happens in the browser.

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Frequently asked questions

How do I study electron configuration for a chemistry quiz?

Learn the Aufbau filling order first, then practice writing shorthand with noble gas cores. Check every answer by confirming the electron count equals the atomic number, minus any charge.

Which exceptions are most likely to appear on a chemistry quiz?

Chromium and copper are the common exam examples, because one electron moves from 4s into 3d to create a half-filled or full d subshell. Your instructor's notes will usually show which exceptions they expect.

Can I export the quiz to PDF or Moodle?

PDF and DOCX export are included on the Plus plan at $39/year or $7.99/month. QTI 2.1 and Moodle XML export are on the Pro plan at $14.99/month, and the free plan is limited to browser study.

Do I need a credit card to try it?

No, you can start on the free plan without a credit card. Students also get 40% off with a school email address.

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