• 38 questions

What Periodic Element Am I Quiz

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I am a noble gas in period 2. What element am I?

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Unofficial practice questions, not affiliated with any school, textbook publisher or curriculum. Bank checked September 24, 2026.

All 38 questions with answers

Family and period 12

  • I am a halogen in period 2. What element am I? Answer: Fluorine. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am a halogen in period 4. What element am I? Answer: Bromine. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am a halogen in period 5. What element am I? Answer: Iodine. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am a noble gas in period 2. What element am I? Answer: Neon. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am a noble gas in period 3. What element am I? Answer: Argon. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am a noble gas in period 4. What element am I? Answer: Krypton. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am an alkali metal in period 3. What element am I? Answer: Sodium. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
Show all 38 riddles (31 more)

Family and period, continued

  • I am an alkali metal in period 4. What element am I? Answer: Potassium. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am an alkali metal in period 5. What element am I? Answer: Rubidium. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am an alkaline earth metal in period 2. What element am I? Answer: Beryllium. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am an alkaline earth metal in period 3. What element am I? Answer: Magnesium. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am an alkaline earth metal in period 4. What element am I? Answer: Calcium. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.

Electrons 8

  • A neutral atom of me has 7 electrons. What element am I? Answer: Nitrogen. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • A neutral atom of me has 10 electrons. What element am I? Answer: Neon. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • A neutral atom of me has 11 electrons. What element am I? Answer: Sodium. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • A neutral atom of me has 19 electrons. What element am I? Answer: Potassium. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • My electron configuration ends in 2p⁴. What element am I? Answer: Oxygen. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • My electron configuration ends in 3p⁵. What element am I? Answer: Chlorine. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • My electron configuration ends in 3p⁶. What element am I? Answer: Argon. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • My electron configuration ends in 3s². What element am I? Answer: Magnesium. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.

Properties 7

  • I am a halogen and a reddish-brown liquid at room temperature. What element am I? Answer: Bromine. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am the lightest noble gas and I make balloons float. What element am I? Answer: Helium. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am the metalloid in period 3, used as a semiconductor in computer chips. What element am I? Answer: Silicon. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I am the only metal that is a liquid at room temperature. What element am I? Answer: Mercury. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • I have 6 protons, form diamond and graphite, and am in every known living thing. What element am I? Answer: Carbon. Source: Wikipedia, Carbon. Read 2026-09-24.
  • I have the highest electronegativity of all the elements. What element am I? Answer: Fluorine. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.
  • My symbol is Au, and I am a transition metal with atomic number 79. What element am I? Answer: Gold. Source: PubChem Periodic Table (group block, state, configuration and electronegativity data). Read 2026-09-24.

Famous facts 11

  • By mass I am Earth's most common element and form much of its core. What element am I? Answer: Iron. Source: Wikipedia, Iron. Read 2026-09-24.
  • By mass I am second in abundance in the human body. What element am I? Answer: Carbon. Source: Wikipedia, Carbon. Read 2026-09-24.
  • Hard as diamond or soft as pencil "lead", I am the same element. What element am I? Answer: Carbon. Source: Wikipedia, Carbon. Read 2026-09-24.
  • I am a metal that melts in your hand, at about 30 °C. What element am I? Answer: Gallium. Source: Wikipedia, Gallium. Read 2026-09-24.
  • I am the lightest element and the universe's most abundant. What element am I? Answer: Hydrogen. Source: Wikipedia, Hydrogen. Read 2026-09-24.
  • I am the most abundant metal in the human body, found in bones and teeth. What element am I? Answer: Calcium. Source: Wikipedia, Calcium. Read 2026-09-24.
  • I make up about 78% of Earth's atmosphere. What element am I? Answer: Nitrogen. Source: Wikipedia, Nitrogen. Read 2026-09-24.
  • I react with oxygen and water to make rust. What element am I? Answer: Iron. Source: Wikipedia, Iron. Read 2026-09-24.
  • In Earth's crust I am the most abundant element. What element am I? Answer: Oxygen. Source: Wikipedia, Oxygen. Read 2026-09-24.
  • Liquid I cools the magnets in MRI scanners. What element am I? Answer: Helium. Source: Wikipedia, Helium. Read 2026-09-24.
  • My name means "water-former" because I burn to make water. What element am I? Answer: Hydrogen. Source: Wikipedia, Hydrogen. Read 2026-09-24.

How this list was compiled: Riddles, wrong choices and explanations were written for this site. Group blocks, periods, electron configurations, states and electronegativities come from PubChem's periodic table data and were checked against it; other facts were read on the Wikipedia article named in the question's source line, 2026-09-24. Licence: own work

How it works

This what periodic element am I quiz has 38 riddles. Each one describes an element by its family and period, its electrons, a property such as being a liquid, or a famous fact, and you name it.

Read the full guide

Four sets

Family and period uses alkali metals, alkaline earth metals, halogens and noble gases. Electrons gives an electron count or the end of a configuration. Properties and Famous facts use states, electronegativity, the air, the crust and the body.

Print or practise

Practice brings a missed riddle back until you get it right. After a round, Print lists its riddles: Add all brings in the rest of the 38, and a tick on With answer key adds the key.

  • Alkali metals are group 1, alkaline earth metals group 2, halogens group 17 and noble gases group 18.
  • A neutral atom has as many electrons as its atomic number.
  • The period is the row: period 3 runs from sodium to argon.

Questions and answers

What is a what element am I riddle?

A set of clues about one element, such as its group, period, number of electrons or a use, that lets you name it. Chemistry classes use them to practise reading the periodic table.

How do you find an element from its group and period?

The period is the row and the group is the column; the element sits where they cross. The halogen in period 4 is bromine; the noble gas in period 3 is argon.

Which elements are liquid at room temperature?

Only mercury, a metal, and bromine, a halogen. Gallium melts at about 30 °C, so it turns liquid in your hand.