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Class 10 Science Chapter 5 Periodic Classification Of Elements Quiz 5 (25 MCQs)

Quiz Instructions

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1. Pick out the chemically most reactive elements from the given triads.Li, Na, K F, Cl, Br
2. Which of the following properties does not match to the elements of halogen family?
3. Which of the following does not increase while moving down the group of the periodic table?
4. The atom of an element has electronic con-figuration 2, 8, 7. To which of the following elements would it be chemically similar?
5. Which one of the following elements would lose an electron easily?
6. The arrangement of elements in the Modem Periodic Table is based on their
7. "when elements are arranged in the order of increasing atomic masses the elements with similar properties occur at regular intervals" . Who stated this?
8. In Mendeleev's Periodic Table how many periods and groups are present?
9. Which among the following has the least ionization energy?
10. In Mendeleev's Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the Periodic Table later?
11. Where would you locate the element with electronic configuration 2, 8 in the modern periodic table?
12. The element that has the latin name "Argentum" is
13. On moving from left to right in a short period, the valency of elements with respect tohydrogen .....
14. ..... elements were known when mendeleev presented the periodic table
15. According to Mendeleev's Periodic law, the elements were arranged in the periodic table in the order of .....
16. Which one of the following elements exhibit maximum number of valence electrons?
17. The valency of noble gases, in general is .....
18. Atoms of elements in group 1 have .....
19. What is the big group of metals called found within the metals
20. How many groups are there in modern periodic table?
21. Name the neutral atom in the Periodic Table which has the same number of electrons as K+ and Cl-.
22. Neon shows zero electron affinity due to .....
23. What are Group 1 elements known as?
24. On moving from top to bottom in a group, in the periodic table, size of an atom .....
25. An element which is an essential constituent of all organic compounds belong to .....
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