How many elements does the periodic table quiz cover?

All 118, from hydrogen (1) to oganesson (118). You can narrow a round to the first 20, 36 or 54 elements or to any run of atomic numbers, such as 57 to 71. A round never asks the same element twice, and Every element once asks each element in the set exactly once.

Does capitalization matter for element symbols?

Yes, for symbols. A symbol is a capital letter, followed by a small one when there are two, so Ac is right for actinium while AC and ac are marked wrong, with a note showing the right case. Names count in any case, so Actinium, actinium and ACTINIUM are all right.

Is it aluminum or aluminium, cesium or caesium?

Both count when you type them. The table lists aluminium, caesium and sulfur, as the Wikidata snapshot spells them, and typed answers also accept aluminum, cesium and sulphur. Questions that name one of these elements give both spellings, and a multiple-choice round never offers the other spelling as a wrong choice.

What kinds of questions does it ask?

Six directions: name to symbol, symbol to name, name to number, number to name, symbol to number and number to symbol, or Mixed, which picks one of the six at random for each question. Answers are typed or picked from four choices, and an optional timer runs as a stopwatch or as a 1, 3 or 5 minute limit.

Can I print a periodic table quiz?

Yes. Print questions prints the current round as a numbered question sheet, and Print key prints its answer key on its own, so the answers can stay with the teacher. A multiple-choice round prints its four options, lettered a to d, and the key gives the letter with the answer. The preview under Review shows both sheets on the page first.

Is my progress saved?

In this browser only. The page keeps your settings, the round in progress, how many rounds you have finished, your last score and which elements you have missed most, and a button asks every element you have missed before again. Clear progress forgets the rounds and misses; the Start over button at the top of the page forgets everything the page saved. Nothing you type is sent anywhere.

Where do the element names and symbols come from?

From a Wikidata snapshot dated 21 September 2026, released under CC0, with every atomic number and symbol cross-checked against PubChem's periodic table. The table is bundled with the page, so a quiz makes no request for it and keeps working offline once the page has loaded. The quiz covers identities only: no masses or properties.

Periodic Table Quiz

Practice element names, symbols and atomic numbers on all 118 elements or any run of atomic numbers, then review what you missed. Symbols are marked with their case, so Ac is right and AC is not; names count in any case, with aluminum, cesium and sulphur accepted beside the table's spellings. A full-table round asks every element exactly once, and any round prints as a question sheet with a separate answer key.

preparing

Preparing a round

review

missed this round

none yet

print this round, no round yet

questions and the answer key print separately

progress, this browser only

rounds: none finished yet
missed most: none yet

source

Wikidata CC0 snapshot, 21 September 2026

Question: none yet
Right so far: none answered yet
Pool: none yet
Source: Wikidata, 21 Sep 2026

Actiniumname to symbol, name to number
Ac and 89
Hydrogen and oganessonfirst and last in the table
H and 1; Og and 118
All 118, no repeatsfull-table round
118 questions, each atomic number exactly once; answers show symbols in their own case, such as Og, never OG

Settings

Elements

Questions ask

Answers

Length

Timer

A round never asks the same element twice. A length longer than the set asks each element in it once. Mixed asks all six directions at random.

Review

No misses in this round so far.

Preview the printable questions and answer key

The sheet appears once a round has started.

Progress

Kept in this browser only. A round is counted when it ends with at least one answer.

Rounds finished: none finished yet
Missed most: none yet
Missed at least once: none yet

Sources

Wikidata snapshot, 21 September 2026. Element names, symbols and atomic numbers come from Wikidata, released under CC0 1.0, retrieved with a query to the Wikidata Query Service and bundled with this page, so it makes no request for them. Every number and symbol pair matches PubChem. The questions, choices and sheets are original to this page.

Source files, served from this site: element facts (JSON), query result (JSON), the query, licence notice.

Type the answer and press Enter to check it, then Enter again for the next question. In a multiple-choice round, keys 1 to 4 pick an answer while a choice has focus, as the first one does after Next. Full-width letters and digits are read as plain ones.

Accuracy. Names, symbols and atomic numbers for all 118 elements come from a Wikidata snapshot dated 21 September 2026 (CC0), with every number and symbol cross-checked against PubChem; names are spelled as that snapshot spells them, such as aluminium and caesium, and typed answers also accept aluminum, cesium and sulphur. The questions are original and cover element identities only: no masses, properties or handling information. A score counts right answers in this round and is not a grade or a level.

Common questions

How many elements does the periodic table quiz cover?: All 118, from hydrogen (1) to oganesson (118). You can narrow a round to the first 20, 36 or 54 elements or to any run of atomic numbers, such as 57 to 71. A round never asks the same element twice, and Every element once asks each element in the set exactly once.
Does capitalization matter for element symbols?: Yes, for symbols. A symbol is a capital letter, followed by a small one when there are two, so Ac is right for actinium while AC and ac are marked wrong, with a note showing the right case. Names count in any case, so Actinium, actinium and ACTINIUM are all right.
Is it aluminum or aluminium, cesium or caesium?: Both count when you type them. The table lists aluminium, caesium and sulfur, as the Wikidata snapshot spells them, and typed answers also accept aluminum, cesium and sulphur. Questions that name one of these elements give both spellings, and a multiple-choice round never offers the other spelling as a wrong choice.
What kinds of questions does it ask?: Six directions: name to symbol, symbol to name, name to number, number to name, symbol to number and number to symbol, or Mixed, which picks one of the six at random for each question. Answers are typed or picked from four choices, and an optional timer runs as a stopwatch or as a 1, 3 or 5 minute limit.
Can I print a periodic table quiz?: Yes. Print questions prints the current round as a numbered question sheet, and Print key prints its answer key on its own, so the answers can stay with the teacher. A multiple-choice round prints its four options, lettered a to d, and the key gives the letter with the answer. The preview under Review shows both sheets on the page first.
Is my progress saved?: In this browser only. The page keeps your settings, the round in progress, how many rounds you have finished, your last score and which elements you have missed most, and a button asks every element you have missed before again. Clear progress forgets the rounds and misses; the Start over button at the top of the page forgets everything the page saved. Nothing you type is sent anywhere.
Where do the element names and symbols come from?: From a Wikidata snapshot dated 21 September 2026, released under CC0, with every atomic number and symbol cross-checked against PubChem's periodic table. The table is bundled with the page, so a quiz makes no request for it and keeps working offline once the page has loaded. The quiz covers identities only: no masses or properties.

Names, symbols and atomic numbers for all 118 elements come from a Wikidata snapshot dated 21 September 2026 (CC0), with every number and symbol cross-checked against PubChem; names are spelled as that snapshot spells them, such as aluminium and caesium, and typed answers also accept aluminum, cesium and sulphur. The questions are original and cover element identities only: no masses, properties or handling information. A score counts right answers in this round and is not a grade or a level.