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One-Letter Elements Trivia Quiz

There are fourteen elements whose symbol is just one letter. Someone thought it would be funny to remove them all from the Periodic Table of the Elements. Can you help me put them back where they belong?

A label quiz by reedy. Estimated time: 3 mins.

Author
reedy

Time
3 mins

Type
Label Quiz

Quiz #
421,440

Updated
Oct 12 25

# Qns
14

Difficulty
Easy

Avg Score
12 / 14

Plays
371

Awards
Top 20% Quiz

Last 3 plays: Guest 86 (14/14), hosertodd (14/14), Guest 156 (12/14).

Click on image to zoom (Y) Yttrium (V) Vanadium (F) Fluorine (H) Hydrogen (K) Potassium (B) Boron (P) Phosphorus (I) Iodine (N) Nitrogen (O) Oxygen (W) Tungsten (U) Uranium (C) Carbon (S) Sulfur

* Drag / drop or click on the choices above to move them to the answer list.
View Image Attributions for This Quiz

1. Lightest

2. Banana

3. Laser

4. Steel

5. Filament

6. Radioactive

7. Shield

8. Diamond

9. Fertilizer

10. Glow

11. Brimstone

12. Breath

13. Toothpaste

14. Antiseptic

Most Recent Scores

Apr 12 2026 : Guest 86: 14/14
Apr 06 2026 : hosertodd: 14/14
Mar 30 2026 : Guest 156: 12/14
Mar 25 2026 : masfon: 14/14
Mar 24 2026 : amarie94903: 14/14
Mar 24 2026 : sciencenerd05: 11/14
Mar 24 2026 : Lpez: 14/14
Mar 20 2026 : CeeDeeJay: 12/14
Mar 18 2026 : debray2001: 12/14

Quiz Answer Key and Fun Facts

1. (H) Hydrogen

(H) - Hydrogen
Atomic number: 1
Family/Group: Nonmetal

Clue: Lightest

Hydrogen is the lightest and smallest element in the universe. It's found in water and stars, and it's super important for life!

2. (K) Potassium

(K) - Potassium
Atomic number: 19
Alkali metal

Clue: Banana

Potassium helps your muscles work and keeps your heart healthy. You can find it in bananas, which is why "banana" is a great clue!

3. (Y) Yttrium

(Y) - Yttrium
Atomic number: 39
Transition metal

Clue: Laser

Yttrium is used in lasers and some electronics. It's a special metal that helps things light up in cool ways.

4. (V) Vanadium

(V) - Vanadium
Atomic number: 23
Transition metal

Clue: Steel

Vanadium makes steel stronger. It's used in tools, buildings, and even cars to help them last longer.

5. (W) Tungsten

(W) - Tungsten
Atomic number: 74
Transition metal

Clue: Filament

Tungsten is super strong and used in light bulbs. The tiny wire inside the bulb that glows is called a filament-and it's often made of tungsten!

6. (U) Uranium

(U) - Uranium
Atomic number: 92
Actinide

Clue: Radioactive

Uranium is a powerful element used in nuclear energy. It's radioactive, which means it gives off energy that can be used to make electricity.

7. (B) Boron

(B) - Boron
Atomic number: 5
Metalloid

Clue: Shield

Boron helps protect people from radiation. It's used in special shields in places like nuclear power plants.

8. (C) Carbon

(C) - Carbon
Atomic number: 6
Nonmetal

Clue: Diamond

Carbon is in everything living-and also in diamonds! It can be soft like pencil lead or super hard like a diamond.

9. (N) Nitrogen

(N) - Nitrogen
Atomic number: 7
Nonmetal

Clue: Fertilizer

Nitrogen helps plants grow. Farmers use it in fertilizer to make crops healthy and strong.

10. (P) Phosphorus

(P) - Phosphorus
Atomic number: 15
Nonmetal

Clue: Glow

Phosphorus can glow in the dark! It's also important for bones and teeth, and helps plants grow too.

11. (S) Sulfur

(S) - Sulfur
Atomic number: 16
Nonmetal

Clue: Brimstone

Sulfur smells like rotten eggs and is found in volcanoes. Long ago, people called it "brimstone."

12. (O) Oxygen

(O) - Oxygen
Atomic number: 8
Nonmetal

Clue: Breath

Oxygen is the air we breathe! It helps our bodies work and keeps us alive.

13. (F) Fluorine

(F) - Fluorine
Atomic number: 9
Halogen

Clue: Toothpaste

Fluorine helps keep our teeth strong. That's why it's in toothpaste and drinking water.

14. (I) Iodine

(I) - Iodine
Atomic number: 53
Halogen

Clue: Antiseptic

Iodine helps clean cuts and keep them from getting infected. It's also important for keeping our bodies healthy.

Source: Author reedy

This quiz was reviewed by FunTrivia editor looney_tunes before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.

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Referenced Topics

Label Quizzes People Science Chemistry Science for Children Periodic Table Volcanoes Chemistry for Kids Diamonds Volcano Science

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