InterviewSolution
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InterviewSolution
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The table given below represents the first three periods. Study the table and answer the question as given below(a) Write the formula of the sulphate of the element with atomic number 13(b) what type of bonding will be present in the oxide of the element with atomic number 17?(c) Which feature of the atomic structure accounts for the similarities in the chemical properties of the elements in group 7A of the periodic table?(d) Name the element which has the highest ionization potential.(e) How many electrons are present in the valency shell of the element with atomic number 18?(f) What is the name given to the energy released when an atom in its isolated gaseous state accepts an electron to form an anion?(g) Fill in the blanks:The atomic size ………. as we move from left to right across the periods, because the ……… increases but the …………… remains the same |
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Answer» (a) (Al)2(SO4)3 (b) Covalent bonding (c) Same number of valence electrons (d) Helium (e) 8 (f) Electron affinity (g) The atomic size Decreases as we move from left to right across the periods, because the atomic number increases but the number of shells remains the same |
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