Punjab 9th Class Chemistry Chapter 3 Periodic Table and Periodicity of Properties Mcqs Test Online Punjab 9th Class Chemistry Chapter 3 Periodic Table and Periodicity of Properties 9th Class Punjab 123456789 Question 1 of 9Chemistry 1. Number of periods in the periodic table are: 7 58 16 Question 1 of 9Question 2 of 9 2. Valene shell electronic configuration of an element M (atomic no. 14) is: 2s²2p¹ 3s²3p²2s²2p² 2s²2p³ Question 2 of 9Question 3 of 9 3. As you move from right to left across a period, which of the following does not increase: Nuclear charge Electron affinity Shielding effect Ionization energy Question 3 of 9Question 4 of 9 4. All the elements of Group IIA are less reactive than alkali metals. This is because these elements have: Similar electronic configuration Relatively greater atomic sizes Decreased nuclear chargeHigh ionization energies Question 4 of 9Question 5 of 9 5. Which of the following elements belongs to VIIIA? Mg XeBr Na Question 5 of 9Question 6 of 9 6. Main group elements are arranged in ___________ groups. 8 6 107 Question 6 of 9Question 7 of 9 7. Which of the following groups contain alkaline earth metals? VIIIAIIA VIIA IA Question 7 of 9Question 8 of 9 8. Period number of ²⁷₁₃ A1 is: 1 2 4 3 Question 8 of 9Question 9 of 9 9. Which of the following elements you expect to have greater shielding effect? K Na Li RbQuestion 9 of 9 Loading... Test By Subject Punjab Test By Topics 9th Class Chemistry You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.