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Refer to Figure 10.2 to find the electronegativity

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 81P Chapter 10

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 81P

PROBLEM 81P

Refer to Figure 10.2 to find the electronegativity difference between each pair of elements; then refer to Table 10.2 classify the bonds that occur between them as pure covalent, polar covalent, or ionic.

(a) Mg and Br

(b) Cr and F

(c) Br and Br

(d) Si and O

Table 10.2 The Effect of Electronegativity Difference on Bond Type

Electronegativity Difference (ΔEN)

Bond Type

Example

zero (0–0.4)

pure covalent

Cl2

intermediate (0.4–2.0)

polar covalent

HF

large (2.0+)

ionic

NaCl

Step-by-Step Solution:

Solution 81P

Step 1:

Here, Referring to given Figure 10.2 we need to find the electronegativity difference between each pair of elements and then refer to Table 10.2 classify the bonds that occur between them as pure covalent, polar covalent, or ionic.

Table 10.2 The Effect of Electronegativity Difference on Bond Type

Electronegativity Difference (ΔEN)

Bond Type

Example

zero (0–0.4)

pure covalent

Cl2

intermediate (0.4–2.0)

polar covalent

HF

large (2.0+)

ionic

NaCl

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons, towards itself. An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. The higher the associated electronegativity number, the more an element or compound attracts electrons towards it.

Step 2 of 2

Chapter 10, Problem 81P is Solved
Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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Refer to Figure 10.2 to find the electronegativity

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