🧪 Ultimate Periodic Table Quiz – Challenge Yourself!

Welcome to the Ultimate Chemistry Quiz! 🎉
This quiz features 118 carefully crafted questions, one for each element on the periodic table. From Hydrogen to Oganesson, test your chemistry knowledge with a mix of easy, tricky, and expert-level questions.

Whether you're a student, teacher, competitive exam aspirant, or just a science lover, this is your chance to prove how well you know your elements. Let's get started!

1. What is the atomic number of Hydrogen?
A) 0 B) 1 C) 2 D) 4

2. Which gas is used in balloons and is lighter than air?
A) Nitrogen B) Oxygen C) Helium D) Neon

3. Which element is most commonly used in rechargeable batteries?
A) Sodium B) Lithium C) Zinc D) Calcium

4. Beryllium is often used in which industry?
A) Textiles B) Aerospace C) Agriculture D) Cosmetics

5. Boron is a metalloid used in:
A) Fireworks B) Fertilizers C) Detergents D) Explosives

6. What is the most common form of carbon?
A) Diamond B) Graphite C) Coal D) Soot

7. Major component of the Earth’s atmosphere is:
A) Oxygen B) Nitrogen C) Carbon dioxide D) Argon

8. Essential element for respiration is:
A) Hydrogen B) Nitrogen C) Oxygen D) Chlorine

9. Most reactive halogen is:
A) Fluorine B) Chlorine C) Bromine D) Iodine

10. Which noble gas is used in neon lights?
A) Neon B) Argon C) Krypton D) Xenon

11. Which metal is soft and reacts violently with water?
A) Sodium B) Iron C) Gold D) Aluminum

12. Magnesium is important for:
A) Muscles B) Bones C) Hair D) Skin

13. Aluminum is mainly extracted from:
A) Bauxite B) Hematite C) Galena D) Calcite

14. Which element strengthens bones and teeth?
A) Iron B) Calcium C) Zinc D) Sodium

15. Phosphorus is mainly found in:
A) Enzymes B) Bones C) DNA D) All of the above

16. Sulfur is commonly used in:
A) Battery acid B) Soap C) Gunpowder D) All of the above

17. Which gas is used in light bulbs to prevent filament oxidation?
A) Oxygen B) Helium C) Argon D) Neon

18. Potassium is essential for:
A) Nerve function B) Blood clotting C) Vision D) Digestion

19. Calcium is classified as:
A) Alkali metal B) Noble gas C) Alkaline earth metal D) Metalloid

20. Scandium is used mainly in:
A) Lighting B) Jet engines C) Paper D) Paint

Titanium is famous for its:
A) Density B) Color C) Strength-to-weight ratio D) Softness

Which element is magnetic?
A) Zinc B) Iron C) Silver D) Aluminum

Cobalt is commonly used in:
A) Paints B) Fuel C) Fertilizers D) Plastics

What color flame does copper produce in fireworks?
A) Green B) Red C) Blue D) Yellow

Zinc is important in the body for:
A) Skin B) Bones C) Blood D) DNA repair

Gallium can:
A) Boil at room temp B) Melt in your hand C) Freeze water D) Burn spontaneously

Which element is poisonous and found in semiconductors?
A) Antimony B) Germanium C) Arsenic D) Selenium

Which element is used in solar panels and transistors?
A) Lead B) Silicon C) Carbon D) Sulfur

Phosphorescent materials may contain:
A) Phosphorus B) Argon C) Barium D) Fluorine

Which element glows red in a vacuum tube?
A) Neon B) Krypton C) Xenon D) Argon

Gallium has a unique property of:
A) Radioactivity B) Liquefying in hand C) Fluorescence D) Magnetism

Germanium is primarily used in:
A) Mirrors B) Thermometers C) Semiconductors D) Batteries

Arsenic is known for being:
A) A medicine B) A poison C) A fertilizer D) A preservative

Selenium plays an important role in:
A) Digestion B) Vision C) Thyroid function D) Muscle growth

Bromine is one of only two elements that are:
A) Noble gases B) Solid at room temp C) Liquid nonmetals D) Radioactive

Which halogen is purple in color?
A) Fluorine B) Chlorine C) Bromine D) Iodine

Krypton is used in:
A) Water treatment B) High-speed photography C) Cooking D) Engines

Rubidium is highly:
A) Soft B) Magnetic C) Flammable D) Inert

Strontium is used to:
A) Build bones B) Treat cancer C) Color fireworks red D) Make steel

Yttrium is often used in:
A) Thermometers B) Fluorescent tubes C) Coins D) Fuel

Zirconium is resistant to:
A) Fire B) Water C) Corrosion D) Oxidation

Niobium is used in:
A) Aerospace B) Jewelry C) Cement D) Antifreeze

Molybdenum is important for:
A) Glass making B) Animal health C) Engine oils D) Plastics

Technetium is the first:
A) Synthetic element B) Radioactive gas C) Metal D) Alloy

Ruthenium is used in:
A) Antibiotics B) Electronics C) Lubricants D) Plastics

Rhodium is valued for its:
A) Shine B) Rarity C) Hardness D) All of the above

Palladium is widely used in:
A) Currency B) Catalytic converters C) Jewelry D) Rockets

Silver is best known for:
A) Ductility B) Electrical conductivity C) Density D) Thermal resistance

Cadmium is toxic and found in:
A) Paint B) Batteries C) Steel D) Jewelry

Indium is used in:
A) Lasers B) Mirrors C) Touch screens D) Engines

Tin is commonly used for:
A) Packaging B) Jewelry C) Light bulbs D) Batteries

Antimony strengthens:
A) Rubber B) Lead C) Steel D) Plastic

Tellurium smells like:
A) Lemon B) Garlic C) Ammonia D) Rotten eggs

Iodine is essential for the production of:
A) Hemoglobin B) Insulin C) Thyroid hormones D) Enzymes

Xenon is used in:
A) Headlights B) MRI machines C) Smoke detectors D) Solar panels

Cesium is known for its use in:
A) Optical lenses B) Atomic clocks C) Dental tools D) Paint

Barium sulfate is used in:
A) X-ray imaging B) Combustion C) Catalysts D) Medicine

Lanthanum is a:
A) Halogen B) Noble gas C) Lanthanide D) Alkaline earth metal

Cerium is used in:
A) Glass polishing B) Welding C) Jewelry D) Detergents

Praseodymium is used in:
A) Color TV B) Fireworks C) CDs D) Alloys

Neodymium is best known for its use in:
A) Fertilizers B) Magnets C) Fire extinguishers D) Vitamins

Promethium is unique because it is:
A) Radioactive B) Magnetic C) Nonmetal D) A noble gas

Samarium is used in:
A) Bone cancer treatment B) LEDs C) Batteries D) Fuel

Europium is key in:
A) Optical fibers B) Nuclear reactors C) Color TVs D) Rockets

Gadolinium is commonly found in:
A) MRI contrast agents B) Laundry detergents C) Inks D) Pesticides

Terbium helps in producing:
A) Blue pigment B) Green color in phosphors C) Red light D) White paint

Dysprosium is used in:
A) Wind turbines B) Candy wrappers C) Coins D) Sunscreens

Holmium has strong:
A) Magnetic properties B) Toxicity C) Color D) Conductivity

Erbium is useful in:
A) Solar cells B) Lasers and fiber optics C) Spacecraft D) Explosives

Thulium is the rarest of:
A) Transition metals B) Noble gases C) Lanthanides D) Halogens

Ytterbium improves:
A) Fuel economy B) Laser strength C) Stainless steel D) Fiber quality

Lutetium is used in:
A) Cancer therapy B) Soil testing C) Thermometers D) Polymers

Hafnium is used in:
A) Toothpaste B) Nuclear control rods C) Fireworks D) Lenses

Tantalum is highly resistant to:
A) Electricity B) Chemicals and corrosion C) Fire D) Light

Tungsten has the highest:
A) Reactivity B) Density C) Boiling point D) Melting point

Rhenium is used in:
A) Jewelry B) Jet engines C) Rubber D) Cosmetics

Osmium is known as the:
A) Lightest metal B) Densest element C) Most magnetic D) Most radioactive

Iridium is highly resistant to:
A) Electricity B) Heat and corrosion C) Magnetism D) Expansion

Platinum is valuable for:
A) Making steel B) Conducting heat C) Catalytic converters D) Coloring glass

Gold does not:
A) Rust B) Conduct electricity C) Dissolve in acid D) Oxidize

Mercury is the only metal that is:
A) Gaseous B) Magnetic C) Liquid at room temperature D) Transparent

Thallium was historically used in:
A) Toys B) Thermometers C) Rat poison D) Cooking

Lead exposure is harmful to:
A) Muscles B) Brain and nervous system C) Hair D) Bones

Bismuth is often used as a safer substitute for:
A) Lead B) Arsenic C) Cadmium D) Mercury

Polonium is highly:
A) Toxic and radioactive B) Electronegative C) Magnetic D) Reflective

Astatine is extremely:
A) Light B) Rare and radioactive C) Ductile D) Magnetic

Radon is a:
A) Solid B) Liquid C) Noble gas D) Halogen

Francium is the most:
A) Reactive alkali metal B) Stable C) Common D) Malleable

Radium was once used in:
A) Paint B) Clothing C) Plastic D) Cement

Actinium is a:
A) Lanthanide B) Halogen C) Radioactive actinide D) Gas

91. Thorium is being explored for use in:
    A) Jewelry B) Nuclear reactors C) Airplanes D) Batteries

92. Protactinium is rare and mainly found in:
    A) Seawater B) Pitchblende ores C) Atmosphere D) Coal

93. Uranium is primarily used as:
    A) Jewelry B) Fuel for nuclear power C) Antiseptic D) In fireworks

94. Neptunium is a byproduct of:
    A) Mining B) Nuclear reactors C) Fertilizer production D) Oil refining

95. Plutonium is well known for its role in:
    A) Jewelry B) Nuclear weapons and reactors C) Coloring glass D) Fertilizers

96. Americium is found in most:
    A) Thermometers B) Smoke detectors C) Cell phones D) TVs

97. Curium is named after:
    A) A color B) The Curie family C) A city D) A star

98. Berkelium was first synthesized in:
    A) Germany B) USA C) Russia D) France

99. Californium is used in:
    A) MRI machines B) Detecting gold and silver ores C) Clocks D) Perfumes

100. Einsteinium is named after:
     A) A physicist B) A chemist C) A country D) A spacecraft

101. Fermium was discovered during:
     A) WWI B) WWII C) Cold War D) Space Race

102. Mendelevium is named after the creator of:
     A) Atomic theory B) Modern chemistry C) Periodic table D) DNA model

103. Nobelium honors the founder of:
     A) Olympic Games B) Modern medicine C) Nobel Prizes D) Modern physics

104. Lawrencium was named after:
     A) A physicist B) A mathematician C) A chemist D) A novelist

105. Rutherfordium is named after the scientist who discovered:
     A) DNA B) Alpha particles C) Vaccines D) X-rays

106. Dubnium is named after a city in:
     A) Germany B) Russia C) USA D) Sweden

107. Seaborgium honors Glenn Seaborg who helped discover:
     A) Only one element B) Over 100 elements C) 10+ elements D) Atomic bombs

108. Bohrium honors:
     A) Albert Einstein B) Niels Bohr C) Isaac Newton D) Ernest Rutherford

109. Hassium is named after:
     A) The Moon B) A German state (Hesse) C) A scientist D) A Latin term

110. Meitnerium is named after:
     A) A spacecraft B) A female physicist C) A river D) A Roman god

111. Darmstadtium honors the city of:
     A) Stockholm B) Zurich C) Darmstadt D) Geneva

112. Roentgenium is named after the discoverer of:
     A) Oxygen B) Radiation C) X-rays D) Electrons

113. Copernicium is named in honor of:
     A) A mathematician B) Copernicus C) Galileo D) Archimedes

114. Nihonium is named after:
     A) Japan B) Germany C) A scientist D) A metal

115. Flerovium is named after a:
     A) Famous physicist B) City C) Russian institute D) Metal property

116. Moscovium is named after:
     A) Moscow region B) An old empire C) A scientist D) A myth

117. Livermorium is named after:
     A) A country B) A lab in California C) A mineral D) A space station

118. Oganesson honors:
     A) A physicist B) A lab director C) A chemist D) All of the above

✅ Answer Key with Explanations

1. B) 1 – Hydrogen has atomic number 1; it's the first and lightest element.

2. C) Helium – Helium is lighter than air and used in balloons.

3. B) Lithium – Lithium is a major component in rechargeable batteries.

4. B) Aerospace – Beryllium is used in aerospace for its strength and light weight.

5. C) Detergents – Boron is used in detergents and glass.

6. B) Graphite – Carbon commonly exists as graphite in pencils.

7. B) Nitrogen – It makes up ~78% of Earth’s atmosphere.

8. C) Oxygen – Essential for human respiration.

9. A) Fluorine – The most reactive halogen and electronegative element.

10. A) Neon – Neon gas glows red-orange in sign tubes.

11. A) Sodium – Soft, reactive alkali metal that reacts explosively with water.

12. B) Bones – Magnesium is vital for strong bones and many enzymes.

13. A) Bauxite – Aluminum is extracted from bauxite ore.

14. B) Calcium – Essential for bone and teeth strength.

15. D) All of the above – Phosphorus is in bones, DNA, and enzymes.

16. D) All of the above – Sulfur is used in soaps, gunpowder, and batteries.

17. C) Argon – Inert argon gas protects the filament from oxidizing.

18. A) Nerve function – Potassium is vital for muscle and nerve function.

19. C) Alkaline earth metal – Calcium belongs to this group.

20. B) Jet engines – Scandium strengthens alloys in aircraft.

21. C) Strength-to-weight ratio – Titanium is strong and lightweight.

22. B) Iron – Iron is naturally magnetic.

23. A) Paints – Cobalt blue pigment is widely used in art and glass.

24. C) Blue – Copper salts burn blue in flame tests.

25. D) DNA repair – Zinc is essential for enzymes involved in DNA repair.

26. B) Melt in your hand – Gallium melts at around 30°C.

27. C) Arsenic – Arsenic is toxic and has a history in poisons.

28. B) Silicon – Used in microchips and solar panels.

29. A) Phosphorus – Despite the name, phosphorescence isn't due to phosphorus, but it is used in old phosphor paints.

30. A) Neon – Glows red in vacuum tubes.

31. B) Liquefying in hand – Gallium has a melting point of 29.7°C.

32. C) Semiconductors – Germanium is a semiconductor material.

33. B) A poison – Arsenic has historically been a famous poison.

34. C) Thyroid function – Selenium supports healthy thyroid activity.

35. C) Liquid nonmetals – Bromine and mercury are liquids at room temp.

36. D) Iodine – Iodine crystals appear violet/purple.

37. B) High-speed photography – Krypton is used in special camera flashes.

38. C) Flammable – Rubidium reacts violently with water and air.

39. C) Color fireworks red – Strontium gives a red flame.

40. B) Fluorescent tubes – Yttrium is used in red phosphors in TVs.

41. C) Corrosion – Zirconium resists corrosion, ideal in nuclear reactors.

42. A) Aerospace – Niobium is used in high-strength steel alloys.

43. C) Engine oils – Molybdenum compounds reduce engine friction.

44. A) Synthetic element – Technetium is the first man-made element.

45. B) Electronics – Ruthenium is used in chip resistors and electrical contacts.

46. D) All of the above – Rhodium is rare, shiny, and hard.

47. B) Catalytic converters – Palladium helps reduce auto emissions.

48. B) Electrical conductivity – Silver is the best conductor of electricity.

49. B) Batteries – Cadmium is used in NiCd batteries (but it's toxic).

50. C) Touch screens – Indium tin oxide is used in display technology.

51. A) Packaging – Tin is used to coat steel cans for food.

52. B) Lead – Antimony strengthens lead for use in bullets and batteries.

53. B) Garlic – Tellurium compounds smell like garlic.

54. C) Thyroid hormones – Iodine is necessary for thyroxine production.

55. A) Headlights – Xenon is used in powerful vehicle headlamps.

56. B) Atomic clocks – Cesium atoms define the second in atomic clocks.

57. A) X-ray imaging – Barium sulfate is used as a contrast agent in X-rays.

58. C) Lanthanide – Lanthanum is the first of the lanthanide series.

59. A) Glass polishing – Cerium oxide polishes glass surfaces.

60. D) Alloys – Praseodymium is used in high-strength alloys.

61. B) Magnets – Neodymium magnets are extremely strong.

62. A) Radioactive – Promethium is synthetic and radioactive.

63. A) Bone cancer treatment – Samarium-153 is used in radiotherapy.

64. C) Color TVs – Europium gives the red phosphor glow.

65. A) MRI contrast agents – Gadolinium is used in MRI imaging.

66. B) Green color in phosphors – Terbium provides bright green light.

67. A) Wind turbines – Dysprosium is used in magnets for turbines.

68. A) Magnetic properties – Holmium has very high magnetic strength.

69. B) Lasers and fiber optics – Erbium amplifies signals in optical cables.

70. C) Lanthanides – Thulium is the rarest lanthanide.

71. C) Stainless steel – Ytterbium enhances grain refinement in alloys.

72. A) Cancer therapy – Lutetium-177 is used in cancer radiotherapy.

73. B) Nuclear control rods – Hafnium absorbs neutrons efficiently.

74. B) Chemicals and corrosion – Tantalum resists acids and corrosion.

75. D) Melting point – Tungsten has the highest melting point of any element.

76. B) Jet engines – Rhenium improves turbine blade performance.

77. B) Densest element – Osmium is the densest naturally occurring element.

78. B) Heat and corrosion – Iridium is very corrosion-resistant.

79. C) Catalytic converters – Platinum reduces vehicle emissions.

80. A) Rust – Gold doesn’t corrode or rust.

81. C) Liquid at room temperature – Mercury is liquid at 25°C.

82. C) Rat poison – Thallium was once used as a rodenticide.

83. B) Brain and nervous system – Lead affects cognition and development.

84. A) Lead – Bismuth is a safer, less toxic alternative to lead.

85. A) Toxic and radioactive – Polonium is dangerously radioactive.

86. B) Rare and radioactive – Astatine is the rarest halogen.

87. C) Noble gas – Radon is a radioactive noble gas.

88. A) Reactive alkali metal – Francium is highly unstable and reactive.

89. A) Paint – Radium was once used in glow-in-the-dark watch paint.

90. C) Radioactive actinide – Actinium is a rare radioactive actinide.

91. B) Nuclear reactors – Thorium may be used in next-gen nuclear fuel.

92. B) Pitchblende ores – Protactinium is found in uranium ores.

93. B) Fuel for nuclear power – Uranium-235 is key in nuclear reactors.

94. B) Nuclear reactors – Neptunium is formed during reactor operation.

95. B) Nuclear weapons and reactors – Plutonium-239 is fissile.

96. B) Smoke detectors – Americium-241 is used in ionization detectors.

97. B) The Curie family – Curium honors Marie and Pierre Curie.

98. B) USA – Berkelium was synthesized at Berkeley Lab.

99. B) Detecting gold and silver ores – Californium aids in neutron activation analysis.

100. A) A physicist – Einsteinium honors Albert Einstein.

101. B) WWII – Fermium was discovered in nuclear fallout from hydrogen bomb tests.

102. C) Periodic table – Mendelevium is named after Dmitri Mendeleev.

103. C) Nobel Prizes – Nobelium honors Alfred Nobel.

104. A) A physicist – Lawrencium is named after Ernest Lawrence.

105. B) Alpha particles – Rutherford discovered the nuclear model.

106. B) Russia – Dubnium is named after Dubna, Russia.

107. C) 10+ elements – Glenn Seaborg helped discover many transuranic elements.

108. B) Niels Bohr – Bohrium honors this quantum physicist.

109. B) A German state (Hesse) – Hassium is named after Hessen.

110. B) A female physicist – Meitnerium honors Lise Meitner.

111. C) Darmstadt – Site of its discovery in Germany.

112. C) X-rays – Roentgenium honors Wilhelm Roentgen.

113. B) Copernicus – Copernicium honors Nicolaus Copernicus.

114. A) Japan – Nihonium is derived from “Nihon” (Japan).

115. C) Russian institute – Flerovium honors the Flerov Institute.

116. A) Moscow region – Moscovium is named after Moscow Oblast.

117. B) A lab in California – Livermorium honors Lawrence Livermore Lab.

118. D) All of the above – Oganesson honors physicist Yuri Oganessian.

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