Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
Bond energy |
The energy required to break a bond, or energy released with new bond formation |
|
|
Covalent bond |
The shared pair of electrons between non-metal atoms |
|
|
Electronegativity |
A measure of the attraction of an atom for the (shared) pair of electrons in a (covalent) bond |
|
|
Electrical dipole |
A molecule which has partial + and - ends |
|
|
Polar covalent bond |
A bond with electronegativity difference of 0.3 to 1.6 |
|
|
Non-polar covalent bond |
A bond with electeonegativity difference of 0 to 0.2 |
|
|
Ionic bond |
A bond with electronegativity difference 1.7 or greater |
|
|
Crystal lattice |
The repeating 3-dimensional structure + and - ions in ionic solids |
|
|
Electron dot (Lewis) structure |
Atom/ion represented by chemical symbol and valence electrons |
|
|
Octet rule |
Atoms tend to gain/lose electrons in order to achieve 8 valence electrons |
|
|
Double bond |
Two shared electron pairs |
|
|
Triple bond |
Three shared electron pairs |
|
|
Exothermic reaction |
An energy-releasing reaction |
|
|
Endothermic reaction |
An energy absorbing reaction |
|
|
Resonance structures |
2 or more structures together represent a composite of the actual molecular structure; due to delocalized electrons, often in a double bond |
|
|
Polar molecule |
Contains both pair bond(s) and has both partial + and - ends |
|
|
Dipole-dipole bond |
An intermolecular bond between dipole molecules |
|
|
H or hydrogen bond |
An intermolecular bond between dipole molecules where the partial + atom is hydrogen |
|
|
Intramolecular bond |
Bond within a molecule |
|
|
Intermolecular bond |
Bond between molecules |
