The general trend in electronegativity indicates that:

a) Metals are more electronegative than non-metals.

b) Elements toward the bottom of the periodic table have low electronegativity.

c) Elements on the right hand side of the periodic table have low electronegativity.

d) Electronegativity increases moving from the right hand side of the periodic table to the left hand side.

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Patrina SchowalterLv2

13 Dec 2019

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Which of the following statements is false? Explain your choice.

Hydrotelluric acid, H₂Te, is a stronger acid than H₂S because Te has a larger radius than S.

The larger the electronegativity of the central atom, the weaker the oxyacid.

In a series of acids that have the same central atom, acid strength increases with the number of nonprotonated oxygen atoms bonded to the central atom.

In general, the acidity of hydrides increases from left to right in a given row of the periodic table.

One scale for electronegativity is based on the concept that the electronegativity of any atom is proportional to the ionization energy of the atom minus its electron affinity: electronegativity = k(I – EA), where k is a proportionality constant. (a) How does this definition explain why the electronegativity of F is greater than that of Cl even though Cl has the greater electron affinity? (b) Why are both ionization energy and electron affinity relevant to the notion of electronegativity? (c) By using data in Chapter 7, determine the value of k that would lead to an electronegativity of 4.0 for F under this definition. (d) Use your result from part (c) to determine the electronegativities of Cl and O using this scale. (e) Another scale for electronegativity defines electronegativity as the average of an atom’s first ionization energy and its electron affinity. Using this scale, calculate the electronegativities for the halogens, and scale them so fluorine has an electronegativity of 4.0. On this scale, what is Br’s electronegativity?