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a] Mention the relative position of meta...

a] Mention the relative position of metals, non-metals, and metalloids in group 13-16 of the periodic table.
b] Classify the following elements as metals, non-metals, and metalloids.
(i) Calcium (ii) Sulphur (iii) Selenium

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a] In group 13, first element is a metalloid while the rest of the elements are metals. In group 14, Ist element is a non-metal, 2nd and 3rd elements are metalloids, and the rest of the elements are metals. In group 15, 1st and 2nd elements are non-metals, 3rd element is a metalloid, and the rest are metals. In group 16, first 3 elements are nonmetals, next two are metalloids, and the remaining one is a metal.
b] Calcium is a metal, sulphur and selenium are non-metals.
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ZEN PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-ZEE ADDITIONAL QUESTIONS SECTIONS (SHORT ANSWER (SA) TYPE QUESTIONS)
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  2. What is the basis of the Modern Periodic Table? Why lithium with atomi...

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  3. a] Mention the relative position of metals, non-metals, and metalloids...

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

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  6. State three reasons for placing chlorine and bromine in the same group...

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  9. Consider the part of the periodic table given below and answer the fol...

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  10. An element Y has three shells with four electrons in the valence shell...

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  11. Lithium is an alkali metal with atomic number = 3 and number of valenc...

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  12. An element X (atomic number 17) reacts with an element Y (atomic numbe...

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  13. An element P (atomic number 20) reacts with an element Q (atomic numbe...

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  14. Arrange giving reason the following elements in the increasing order o...

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

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  16. Justify the following statements: a) Cations are smaller in size th...

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

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