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InterviewSolution
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explain electron afinity,electronegativity electron positivitity and metal and non metal How there properties vary in a group and period |
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Answer» tion:The higher the ELECTRONEGATIVITY of an atom, the GREATER its ability to attract shared electrons. The electronegativity of atoms increases as you move from left to right across a period in the periodic table. The electronegativity of atoms decreases as you move from top to bottom down a group in the periodic table.Atoms BECOME more electronegative across a period due to the increase in Zeff (effective nuclear charge). The number of protons increases across the period, yet the amount of shielding does not increase, leading to INCREASED electronegativity. Explain the decrease in electronegativity down a group. |
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