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First 20 Elements Quiz

First 20 Elements Quiz - FreudlyTake a free first 20 elements quiz to explore your first 20 elements knowledge and discover your results. Quick, no sign-up needed. Start now!en
With 16 questions and a 10-minute completion time, the first 20 elements quiz checks your knowledge of element names, symbols, atomic numbers, order, groups, periods, and basic atomic structure. Your result shows your overall knowledge level and can prompt general review to strengthen your chemistry foundation.
Questions: 1610 minutes
First 20 Elements Quiz: situation and reply bubbles
July 22, 2026July 22, 2026Material has been updatedJuly 22, 2026Material has been published
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701 completion
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Daniel HallPsychologist · Test reviewer
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Scale Explorer

How the Scales are Structured

First 20 Elements KnowledgeF2EK
Measures how accurately you recall and apply knowledge of the first 20 periodic-table elements, including names, symbols, order, families, and basic atomic structure.
example score7/16
7/16Developing knowledgeexample score
0 – 6Foundations to build
7 – 12Developing knowledge
13 – 16Strong command
A score of 7 places you in the Developing knowledge range, suggesting you know many core facts but still have some gaps in symbols, sequence, or periodic patterns.
just completed the test
DATA-BASED USER COHORTS

Who Usually Takes This Test?

Chemistry students revising
46%OF USERS
Middle-school to college learners use it to check recall of element names, symbols, and atomic numbers before quizzes or exams.
STEM test prep learners
32%OF USERS
People preparing for standardized science exams take it to strengthen periodic-table basics and spot weak areas quickly.
Curious science hobbyists
22%OF USERS
Science fans and trivia lovers try it for a quick challenge and to see how much of the periodic table they remember.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
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See How You Compare

Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Shaded area — where most people score
Dot — the average
You — your score lands on each curve after the test— your score, after the test
First 20 Elements KnowledgeF2EK
You?
Average6.4
Typical rangeTypical3.9 – 8.9
Possible0 – 16
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SAMPLE QUESTIONS

Example Questions From the Test

    • Boron and carbon
    • Lithium and sodium
    • Nitrogen and oxygen
    • Magnesium and aluminium
    • Sodium
    • Magnesium
    • Aluminium
    • Silicon
    • NaCl
    • CuCl₂
    • ZnS
    • FeO
WHAT THE TEST MEASURES

First 20 Elements Quiz - Description and methodology of the test

Students, teachers, and curious learners can use this assessment to check whether they connect names with chemical structure and recognize the first 20 elements confidently. The first 20 elements quiz reports an overall knowledge score or interpretive band rather than a multidimensional profile. As a quiz about the first 20 elements of the periodic table, it can support revision before lessons, exams, or independent study.

What This Assessment Measures

Questions test whether learners connect names, symbols, atomic numbers, positions, and basic atomic structure. They cover proton counts, shells, ions, formulas, sequence, groups, and periods, checking recognition as well as recall. It suits anyone reviewing introductory chemistry or testing memorized facts.

The main dimensions represented in the items are:

  • Names and symbols show whether you match an element with its standard abbreviation.
  • Atomic numbers and order indicate whether proton counts and sequence are secure.
  • Groups and periods reveal whether table position helps you recognize families.
  • Atomic structure and formulas show whether shells, ions, and compounds identify elements.

The single result scale is First 20 Elements Knowledge (0-16): Foundations to build (0-6), Developing knowledge (7-12), or Strong command (13-16). This periodic-table quiz tests the first 20 elements and is most useful when the band guides focused review.

Methodology and Evidence Base

Each item offers four choices. Prompts test recognition, comparison, ordering, or application of elementary relationships, so performance depends on selecting the chemically correct option. The elements 1 20 quiz format samples factual recall and short reasoning across the first 20 entries.

The test reports one overall result rather than subscores, giving a broad snapshot across the symbols, sequence, table structure, and atomic models addressed. In a periodic table 1 20 quiz, the emphasis remains foundational rather than advanced chemistry.

The content is conceptually consistent with Chemistry 2e (Flowers et al., 2019) on atomic structure, ions, compounds, and periodic organization. IUPAC conventions support the element identities, symbols, atomic numbers, and arrangement used here. Questions apply these concepts to shell arrangements, ions, families, and simple formulas; the questionnaire is not a direct adaptation of any cited source.

This online knowledge check has no stated population norms or independently reported reliability for its result. Guessing, recent study, attention, and familiarity with notation can affect performance, so it describes this item set at completion rather than a fixed level of scientific ability.

Literature:
  • Flowers, Paul, Klaus Theopold, Richard Langley, and William R. Robinson. Chemistry 2e. Houston, TX: OpenStax, 2019.
  • Holden, Norman E., Tyler B. Coplen, John K. Böhlke, Lauren V. Tarbox, James Benefield, John R. de Laeter, Peter G. Mahaffy, Gerald O'Connor, Eric Roth, David H. Tepper, Tomas Walczyk, Michael E. Wieser, and Shige Yoneda. IUPAC Periodic Table of the Elements and Isotopes (IPTEI) for the Education Community (IUPAC Technical Report). Pure and Applied Chemistry, 90(12), 1833-2092, 2018. 10.1515/pac-2015-0703
  • Mendeleev, Dmitri Ivanovich. The Relation between the Properties and Atomic Weights of the Elements. Journal of the Russian Chemical Society, 1, 60-77, 1869. English translation by C. Giunta.

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