Ionic and Covalent Bond Flashcards
Chemical bond formed by the electrostatic attraction between positive and negative ions
Involves the transfer of electrons
Ionic bond
Symbol in which the electrons in the valence shell of an atom or ion are represented by dots placed around the letter symbol of the element
*group number indicates the value of valence electrons
Lewis electron-dot symbol
Illustration used to represent transfer of electrons during the formation of an ionic bond
Lewis electron-dot formula
Negative of the energy released when gaseous ions form an ionic solid
Lattice energy
Pseudo-noble gas configuration
Electeonic configuration wherein an atom loses or gains an electron to look like a noble gas
Measure of the size of the spherical region around the nucleus of an ion within which the electrons are most likely to be found
Ionic radius
General Trend of Ionic radii
Decreasing down any column
Across any period cation decrease in radius but in anions there is an abrupt increase in radius then the radius decreases again
Isoelectric group of ions
Which is the smallest?
Greatest nuclear charge
Nonmetal bonding
Sharing of electrons
Covalent bond
Electron Pair shared between two atoms
Bonding pair
Electron pair that is not shared
Lone pair
Both electrons are donated by one of the atoms
Coordinate covalent bond
One in which bonding electrons spend more time near one of the two atoms involved
Polar covalent bond
Bonding electrons are shared equally
Nonpolar covalent bond
Measure of the ability of an atom in a molecule to draw bonding electrons to itself
Electronegativity
