Ionic and Covalent Bonds Polarity Chapter 8.1-8.4 Flashcards Preview

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Flashcards in Ionic and Covalent Bonds Polarity Chapter 8.1-8.4 Deck (13):
1

____ bond involves the transfer of electrons from one atom (usually a metal) to another (usually a nonmetal).

ionic

2

in ionic bonds The resulting ions are _______ attracted to one another.

electrostatically

3

lattice energy

The energy required to completely separate a mole of a solid ionic compound into its gaseous ions

4

elements tend to stop losing electrons once they attain a noble gas configuration because

energy would be expended that cannot be overcome by lattice energies

5

covalent bond

share sufficient numbers of electrons in order to achieve a noble gas electron configuration

6

3 electrostatic interactions in these covalent bonds:

Attractions between electrons and nuclei
Repulsions between electrons
Repulsions between nuclei

7

polar covalent bond

is one in which the bonding electrons spend more time near one of the two atoms involved.
POLAR SIDES

8

Electronegativity (greedyness)

is a measure of the ability of an atom in a molecule to draw bonding electrons to itself

9

the electronegativity is less than 0.5 then the bond is

nonpolar

10

he electronegativity is 0.5>1.9 then the bond is

polarr

11

the electronegativity is greater than 1.9 then the bond is

ionic

12

When two atoms share electrons unequally, a bond____ results

dipole

13

The greater the difference in electronegativity, the more ____ is the bond.

polar