PERIODIC TABLE AND PERIODICITY OF PROPERTIES 1. Which of the following groups contain alkaline earth metals? IIA VIIA VIIIA 1A 2. Number of periods in the periodic table are: 8 5 7 16 3. Which of the following elements belongs to VIIIA? Br Mg Na Xe 4. Period number of 27/23 Al is: 4 2 3 1 5. Main group elements are arranged in groups. 8 7 6 10 6. Which of the following elements you expect to have greater shielding effect? K Li Rb Na 7. Valence shell electronic configuration of an element M (atomic no 14) is: 2s², 2p³ 2s², 2p² 3s2, 3p2 2s2, 2p 8. All the elements of Group IIA are less reactive than alkali metals. This is because these elements have: similar electronic configuration high ionization energies decreased nuclear charge relatively greater atomic sizes 9. As you move from right to left across a period, which of the following do not increase: nuclear charge electron affinity shielding effect ionization energy Loading … Question 1 of 9 Related Questions: ATOMIC STRUCTURE Nature of Science in Chemistry MCQ Matter MCQ CHEMICAL BONDING STOICHIOMETERY ELECTOROCHEMISTRY ENERGETICS
