Concept explainers
Interpretation: With the help of the figure showing the trends in electronegativity, determine the category of elements with which hydrogen forms bonds such that hydrogen atoms hold a partial negative charge and those elements with which hydrogen forms bonds by carrying a partial positive charge and explain how the value of electronegativity of hydrogen helps in determining the ability of forming such bonds.
Concept Introduction: To determine if a bond is ionic or covalent we need to find the distance between the two atoms forming the bonds in the periodic table. If one atom is positioned in far left in the periodic table like Group 1 or 2 and the other is on the far right like Group 5, 6, or 7, then the two atoms will have higher differences in electronegativity. Hence, the two atoms will form an ionic bond. But if the atoms are close enough in electronegativity, they form covalent bonds. A covalent bond is formed by any two atoms in the main group elements (Groups 3, 4, 5, 6, 7).
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Chemistry for Engineering Students
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