The Periodic Table
ICSE · Class 9 · Chemistry
Most important questions from The Periodic Table for ICSE Class 9 Chemistry board exam 2026. MCQs, short answer, and long answer questions with marks.
Interactive on Super Tutor
Studying The Periodic Table? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.
1,000+ Class 9 students started this chapter today
This is just one of 15+ visuals inside Super Tutor's The Periodic Table chapter
Explore the full setSample Questions
Which of the following are defects of Mendeleev's periodic table?
Show answer
Position of isotopes, Anomalous pairs, Position of hydrogen
The main defects were: isotopes should have different positions due to different masses, some elements were placed incorrectly (like Ar before K), and hydrogen's position was unclear. Prediction of elements and grouping were actually merits.
How many groups are there in the modern periodic table?
Show answer
18
The modern periodic table has 18 vertical columns called groups, numbered from 1 to 18 according to IUPAC recommendations.
Which of the following are alkali metals?
Show answer
Lithium, Sodium, Potassium
Alkali metals are Group 1 elements: Li, Na, K, Rb, Cs, and Fr. They have one electron in their outermost shell. Mg and Ca are alkaline earth metals (Group 2).
The valency of Group 17 elements is:
Show answer
1
Group 17 elements (halogens) have 7 electrons in their outermost shell, so they need 1 more electron to complete their octet. Therefore, their valency is 1.
+40 more questions available
Practice AllFrequently Asked Questions
What are the important topics in The Periodic Table for ICSE Class 9 Chemistry?
How to score full marks in The Periodic Table — ICSE Class 9 Chemistry?
How many important questions are there in The Periodic Table?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for The Periodic Table
Practice Quiz
Test yourself with a quick quiz
Revision Notes
Key points for last-minute revision
Formula Sheet
All formulas in one place
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect visually
Study Plan
Step-by-step plan to ace this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full The Periodic Table chapter — for free.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for ICSE Class 9 Chemistry.