First 20 Elements Quiz
See how well you know the first 20 periodic table elements in about 10 minutes. Get a clear score band from 16 free questions, with no sign-up and a mix of recall and real-world use.
08:30
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How the Scales are Structured
DATA-BASED USER COHORTS
Who Usually Takes This Test?
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.
Below is a preview of how scores are typically distributed across each scale.
First 20 Elements Knowledge (F2EK)
First 20 Elements Knowledge (F2EK)
Average
6.4
Normal range
3.9 — 8.9
min.
0
max.
16
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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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
About This Assessment
First 20 Elements Quiz - Symptoms and Signs
How well do you know the first 20 elements of the periodic table? This free 16-question quiz tests element names, symbols, atomic numbers, periodic-table order, chemical families, and basic electron arrangements. Questions range from direct recall to short scenarios that ask you to apply what you know. Your total places your knowledge in one of three clear result bands. It is quick to complete, and no sign-up is required.
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