Science quiz
Elements that start with R
8 of the 118 elements start with R. Type them in any order; each shows its symbol and atomic number.
- Format
- Type them all
- Items
- 8 answers
- Limit
- 2:00
- Level
- Hard
- Checked
- 2026.10.03
- Answers
- 8
- Time limit
- 2:00
- 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 elements that start with R.
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About this quiz
The R elements run from rubidium, number 37, to roentgenium, number 111.
- 8 of the 8 have a symbol that starts with R too.
- 7 of them end in ium.
- Names are filed by their IUPAC spelling.
Sources
- [1]PubChem, National Institutes of Health. Periodic Table of Elements.
Last checked October 3, 2026
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