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This question refers to the elements of the periodic table with atomic number from 3 to 18. Some of the elements are shown by letters, but the letters are not the usual symbols of the elements. 3 4 5 6 7 8 9 10 A B C D E F G H 11 12 13 14 15 16 17 18 I K L m N O P Q Which of these(a) have most electronegative element.(b) is a halogen?(c) is an alkali metal?(d) is an element with valency 4?(e) have least ionization energy?(f) have least atomic size in period 3. |
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Answer» (a) Noble gases- H and P (b) Halogens- G and O (c) Alkali metals - A and I (d) D and L have valency of 4 (e) I with atomic number 11. (f) Cl has the least atomic size in period 3 with atomic number 17. |
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