TNPSC Chemistry – Periodic Table Quiz 1

The periodic table is one of the most important topics in chemistry and is frequently asked in TNPSC and other competitive exams. It helps in understanding the properties of elements, their classification, and trends across periods and groups.

In this TNPSC Chemistry Periodic Table Quiz 1, you can test your knowledge with 20 carefully selected MCQ questions based on key concepts such as atomic number, groups, periods, and element properties.

Attempt the quiz and check the Concept Booster section for clear explanations, real-life understanding, and quick revision tips.

1. The periodic table was first arranged by?

2. The modern periodic table is arranged according to?

3. The horizontal rows in the periodic table are called?

4. The vertical columns in the periodic table are called?

5. How many periods are present in the modern periodic table?

6. How many groups are present in the modern periodic table?

7. Elements in the same group have?

8. The first element of the periodic table is?

9. The last element in the periodic table is?

10. Elements in Group 1 are called?

11. Elements in Group 17 are called?

12. Elements in Group 18 are known as?

13. Which block of elements is located in the center of the periodic table?

14. The periodic table helps scientists to?

15. Metals are generally located on the?

16. Non-metals are mostly found on the?

17. The staircase line in the periodic table separates?

18. Elements with properties of both metals and non-metals are called?

19. The element sodium belongs to which group?

20. The periodic table is useful because it?

📘 Want to revise the concepts covered in this quiz?
Click on the Concept Booster tab above for detailed explanations.

🧪 Concept Booster – Periodic Table

Understanding the periodic table is essential for chemistry and plays a key role in TNPSC, SSC, and other competitive exams. It helps in classifying elements, predicting their properties, and understanding chemical behavior.

Let us revise the important concepts of the periodic table.

Development of Periodic Table

The periodic table was first arranged by Dmitri Mendeleev, who organized elements based on their atomic masses.

The modern periodic table is arranged according to the atomic number, which represents the number of protons in an atom. This arrangement provides better classification and removes limitations of earlier models.

Periods and Groups

The periodic table consists of:

  • 7 periods (horizontal rows)
  • 18 groups (vertical columns)

Periods:

Elements in the same period have the same number of electron shells.

Groups:

Elements in the same group have similar chemical properties and the same number of valence electrons.

Classification of Elements

Elements in the periodic table are broadly classified into:

Metals

  • Located on the left side of the periodic table
  • Good conductors of heat and electricity
  • Example: Sodium (Na), Iron (Fe)

Non-metals

  • Found on the right side
  • Poor conductors of heat and electricity
  • Example: Oxygen (O), Nitrogen (N)

Metalloids

  • Located along the staircase line
  • Show properties of both metals and non-metals
  • Example: Silicon (Si)

Important Groups

Group 1 – Alkali Metals

  • Highly reactive metals
  • Example: Sodium (Na), Potassium (K)

Group 17 – Halogens

  • Highly reactive non-metals
  • Example: Chlorine (Cl), Fluorine (F)

Group 18 – Noble Gases

Example: Helium (He), Neon (Ne)

Inert gases (very less reactive)

Blocks in Periodic Table

The periodic table is divided into blocks based on electron configuration:

  • f-block → bottom (lanthanides & actinides)
  • s-block → left side (Groups 1 & 2)
  • p-block → right side (Groups 13–18)
  • d-block → center (transition elements)

Position of Elements

  • First element → Hydrogen (H)
  • Last element → Oganesson (Og)

Elements are arranged in increasing order of atomic number.

Importance of Periodic Table

The periodic table helps scientists to:

  • Classify elements systematically
  • Predict properties of elements
  • Understand chemical reactions
  • Identify element behavior

Real-Life Examples

  • Helium (He) is used in balloons because it is inert (Group 18)
  • Sodium (Na) is used in street lights and belongs to Group 1
  • Chlorine (Cl) is used in water purification (Group 17)

Quick Revision Tips

  • Group 18 → Noble gases
  • Periods → horizontal rows (7)
  • Groups → vertical columns (18)
  • Atomic number → modern basis of arrangement
  • Metals → left side
  • Non-metals → right side
  • Metalloids → staircase line
  • Group 1 → Alkali metals
  • Group 17 → Halogens

Recommended Reference

For more understanding: NCERT Chemistry Resources

Next → TNPSC Chemistry – Periodic Table Quiz 2

Related Chemistry Quizzes

Practice More TNPSC General Science Quizzes

Practice this TNPSC Chemistry Periodic Table Quiz to strengthen your understanding of element classification, groups, and periodic trends. Regular practice of TNPSC Chemistry Periodic Table Quiz questions helps improve accuracy in competitive exams.