Science quiz
Lanthanides and actinides
Thirty elements in two rows of fifteen, numbers 57 to 71 and 89 to 103. Type one and it drops into its row.
- Format
- Type them all
- Items
- 30 answers
- Limit
- 7:00
- Level
- Hard
- Checked
- 2026.10.03
- Answers
- 30
- Time limit
- 7:00
- Order
- Any order
- Matching
- Case and accents ignored
- Type an answer; it files itself the moment it matches.
- One answer can fill several slots.
- Give up at any time to see what you missed.
- Pause whenever you like (Esc). The board hides while the clock is stopped.
Name the lanthanides and the actinides.
Lanthanides, 57 to 710/15
- 1Not found yet
- 2Not found yet
- 3Not found yet
- 4Not found yet
- 5Not found yet
- 6Not found yet
- 7Not found yet
- 8Not found yet
- 9Not found yet
- 10Not found yet
- 11Not found yet
- 12Not found yet
- 13Not found yet
- 14Not found yet
- 15Not found yet
Actinides, 89 to 1030/15
- 1Not found yet
- 2Not found yet
- 3Not found yet
- 4Not found yet
- 5Not found yet
- 6Not found yet
- 7Not found yet
- 8Not found yet
- 9Not found yet
- 10Not found yet
- 11Not found yet
- 12Not found yet
- 13Not found yet
- 14Not found yet
- 15Not found yet
About this quiz
The lanthanides and actinides are the f block of the periodic table. They are drawn below the main table only to keep it from being 32 columns wide.
- IUPAC prefers the names lanthanoids and actinoids, though the older names are still far more common.
- Three of the lanthanides, terbium, erbium and ytterbium, are named after the Swedish village of Ytterby.
- Every actinide is radioactive.
Sources
- [1]PubChem, National Institutes of Health. Periodic Table of Elements.
Last checked October 3, 2026
More quizzes like this
| No. | Quiz | Section | Format | Items | Added |
|---|---|---|---|---|---|
| 01 | The periodic table Name all 118 chemical elements in 15 minutes. Each name lands in its real place on the periodic table, from hydrogen to oganesson. Science / Type them all / 118 answers | Science | Type them all | 118 | 2026.10.02 |
| 02 | The first 20 elements in order Name the first 20 elements of the periodic table in order of atomic number, from hydrogen at 1 to calcium at 20. A chemistry class classic. Science / Type them all / 20 answers | Science | Type them all | 20 | 2026.10.03 |
| 03 | Element symbols A chemical symbol appears; type the element's name. All 118 elements in a random order, with Prev and Next to skip the hard ones. Science / Type them all / 118 answers | Science | Type them all | 118 | 2026.10.02 |