Chemistry Class 9 Chapter 4: Periodic Table and Periodicity of Properties

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• Class 9
• Chemistry
• Chapter 4
• FBISE SSC-I

Chapter summary

Chapter 4 of Chemistry for Class 9 is called "Periodic Table and Periodicity of Properties". It covers 20 learning outcomes of the Federal Board syllabus. You will learn to: define the periodic table as an arrangement of elements; identify the group or period or block of an element using. Parhayi.com has 1252 MCQs, 174 short questions and 34 long questions for this chapter.

Topics in this chapter

• Define the periodic table as an arrangement of elements…
• Identify the group or period or block of an element using…
• Explain the relationship between group number and the…
• Explain similarities in the chemical properties of…
• Identify trends in group and periods, given information…
• Use terms alkali metals, alkaline earth metals, halogens…
• Predict the characteristic properties of an element in a…
• Deduce the nature, possible position in the Periodic…
• Group I Properties Define Group 1, Alkali metals as…
• Predict properties of other elements in group I, given…
• Predict properties of elements in group I in order of…
• Group VII Properties Define Group-VIl, halogens as…
• Identify the appearance of halogens as fluorine as pale…
• Explain the displacement reactions of halogens with other…
• Predict the properties of elements in group VII, given…
• Analyze the relative thermal stabilities of the hydrogen…
• Transition elements Describe Transition elements as…
• Noble gases Define the Group 18 noble gases as…
• Explain this (Nobel gases) in terms of electronic…
• Properties of metals Compare the general physical…

Sample questions

Try these questions from the chapter. The answers are for Premium students.

1. Differentiate between period and group in the periodic table. (3 marks)
2. An atom of an element has 15 electrons. Write its electronic configuration and state its block, period, group and number of valence electrons. (3 marks)
3. The bond energies are H–Cl 431, H–Br 366 and H–I 299 kJ mol⁻¹. Calculate the energy needed to break all the H–X bonds in (a) 2 mol of HCl and (b) 0.5 mol of HI. Which of the two bonds is easier to break? (3 marks)

What Premium gives you in this chapter

• 1252 MCQs with answers and explanations
• 174 short questions with full answers
• 34 long questions with answers
• 14 Learn cards
• 47 Activities and games
• chapter tests that show your weak topics

Chemistry is the study of matter and how it changes. Learn the definitions first, then practise equations, balancing and numericals until they feel easy.