- 1. The Periodic Table is a tabular arrangement of chemical elements, organized by atomic number, electron configuration, and recurring chemical properties. It provides a systematic way to classify the elements and predict their behaviors. Elements are arranged in rows and columns based on similarities in their properties. The table's structure allows scientists to easily identify trends, such as similarities in reactivity or the presence of certain chemical bonds. The Periodic Table is a fundamental tool in chemistry and has been expanded over time to include all known elements, from hydrogen to oganesson.
Which element has the atomic number 1?
A) Carbon
B) Oxygen
C) Helium
D) Hydrogen
- 2. How many elements are there in the Periodic Table?
A) 120
B) 92
C) 118
D) 100
- 3. What is the atomic number of Iron?
A) 26
B) 22
C) 15
D) 30
- 4. Potassium is in which group of the Periodic Table?
A) 2
B) 1
C) 7
D) 5
- 5. What is the most abundant element in the Earth's crust?
A) Silicon
B) Carbon
C) Iron
D) Oxygen
- 6. What is the atomic symbol for Gold?
A) Gd
B) Ag
C) Al
D) Au
- 7. What is the most reactive metal?
A) Copper
B) Sodium
C) Francium
D) Aluminium
- 8. What is the period number of Potassium?
A) 5
B) 4
C) 2
D) 3
- 9. Which element is a halogen?
A) Nickel
B) Fluorine
C) Calcium
D) Zinc
- 10. What is the symbol for Silver?
A) Ag
B) Au
C) Al
D) Si
- 11. What is the atomic number of Uranium?
A) 100
B) 92
C) 80
D) 88
- 12. Which element is a metalloid?
A) Sulfur
B) Silicon
C) Cobalt
D) Potassium
- 13. Which element is used in fluorescent lights?
A) Beryllium
B) Neon
C) Krypton
D) Mercury
- 14. What is the atomic symbol for Lead?
A) Pl
B) Pe
C) Pb
D) Po
- 15. What is the heaviest naturally occurring element?
A) Thorium
B) Uranium
C) Plutonium
D) Polonium
- 16. What is the atomic number of Sodium?
A) 14
B) 18
C) 9
D) 11
- 17. What is the symbol for Potassium?
A) Po
B) Pb
C) Pt
D) K
- 18. How many groups are there in the periodic table?
A) 18
B) 24
C) 12
D) 20
- 19. Which group of elements are known as the noble gases?
A) Group 18
B) Group 1
C) Group 12
D) Group 17
- 20. What element has the atomic number 6?
A) Helium
B) Nitrogen
C) Oxygen
D) Carbon
- 21. Who developed the first periodic table?
A) Marie Curie
B) Dmitri Mendeleev
C) Albert Einstein
D) Isaac Newton
- 22. What is the symbol for sodium on the periodic table?
A) Ne
B) Na
C) Nb
D) Ni
- 23. Which element is the lightest noble gas?
A) Krypton
B) Argon
C) Helium
D) Neon
- 24. What is the rarest naturally occurring element on Earth?
A) Americium
B) Astatine
C) Radium
D) Plutonium
- 25. Which element is a main component of the Earth's atmosphere?
A) Oxygen
B) Argon
C) Carbon
D) Nitrogen
- 26. What is the symbol for iron on the periodic table?
A) Fe
B) I
C) Ir
D) In
- 27. What is the atomic number of oxygen?
A) 10
B) 8
C) 9
D) 7
- 28. Which element is a nonmetal?
A) Iron
B) Silver
C) Phosphorus
D) Copper
- 29. What is the heaviest element in the periodic table?
A) Plutonium
B) Oganesson
C) Lead
D) Uranium
- 30. Which element has the chemical symbol 'Fe'?
A) Copper
B) Gold
C) Silver
D) Iron
- 31. What is the symbol for the element Mercury?
A) Mg
B) Hg
C) He
D) Me
- 32. Which element is essential for proper functioning of the brain and nervous system?
A) Fluorine
B) Selenium
C) Magnesium
D) Iodine
- 33. The concept of periodicity in the periodic table is based on what property of elements?
A) Density
B) Melting point
C) Atomic number
D) Atomic mass
- 34. Mendeleev is known for creating the first version of what?
A) Periodic Table
B) Chemical Equation
C) Genetic Code
D) Atomic Model
- 35. Which element is commonly used in batteries?
A) Lithium
B) Sodium
C) Potassium
D) Calcium
- 36. What is the atomic number of carbon?
A) 2
B) 6
C) 14
D) 8
- 37. Which element is known as the 'universal indicator'?
A) Litmus
B) Bromine
C) Beryllium
D) Hydrogen
- 38. What is the atomic number for helium?
A) 4
B) 2
C) 8
D) 6
- 39. Which element is essential for human life and is found in bones?
A) Calcium
B) Zinc
C) Sulfur
D) Iron
- 40. What is the only non-metallic element that is a liquid at room temperature?
A) Bromine
B) Gallium
C) Mercury
D) Iodine
- 41. Which element is a noble gas and used in advertising signs?
A) Argon
B) Helium
C) Krypton
D) Neon
- 42. What is the largest group of elements on the periodic table?
A) Transition Metals
B) Lanthanides
C) Alkali Metals
D) Noble Gases
- 43. What element gives the green color in fireworks?
A) Lead
B) Barium
C) Sodium
D) Copper
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