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Two elements 'P' and 'Q' belong to the s...

Two elements 'P' and 'Q' belong to the same period of the modern periodic table and are in Group -1 and Group -2 respectively. Compare their following characteristics in tabular form:
(i) The number of electrons in their atoms
(ii) The sizes of their atoms
(iii) Their metallic characters
(iv) Their tendencies to lose electrons
(v) The formula of their oxides
(vi) The formula of their chlorides

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OSWAAL PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-TOPIC:2- SHORT ANSWER TYPE QUESTIONS-II
  1. Na, Mg and Al are the elements of the same period of modern periodic t...

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  2. The elements (4)Be,(12)Mgand(20)Ca each having two, valence electrons ...

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  3. Two elements 'P' and 'Q' belong to the same period of the modern perio...

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  4. The atomic number of an element 'X' is 20. (i) Determine the positio...

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  5. Four elements P, Q, R and S belong to the third period of the Modern P...

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  6. In the following table, the positions of six elements A, B, C, D, E an...

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  7. The electrons in the atoms of four elements A, B, C and D are distribu...

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  8. Based on the group valency of elements state the formula for the follo...

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  9. Consider two elements ‘A’ (Atomic number 17) and 'B' (Atomic number 19...

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  10. Study the following table in which positions of six elements A, B, C, ...

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  11. The elements Li, Na and K, each having one valence electron, are in pe...

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  12. An atom has electronic configuration 2, 8, 2. (i) What is the atomic...

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  13. Two elements X and Y belong to group 1 and 2 respectively in the same ...

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  14. Four elements A, B, C and D along with their electronic configuration ...

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  15. Four elements A, B, C and D have atomic numbers 12, 13, 14 and 15 resp...

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  16. Three elements X, Y and Z have atomic numbers 7, 10 and 14 respectivel...

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  17. From the following part of the periodic table, answer the following qu...

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  18. The position of three elements A, B and C in the periodic table are sh...

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  19. Given below are some elements of the Modern Periodic Table: ""(4)Be,...

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  20. Write the number of period the modern periodic table has. How do the v...

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