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;
18 Cards in this Set
- Front
- Back
Chemical bonds
|
an attractions between two atoms, resulting from a sharing of outer-shell electrons of the presence of opposite charges on the atoms. The bonded atoms gain complete outer electron shells.
|
|
Covalent Bonds
|
A type of strong chemical bond in which two atoms share one or more pairs of valence electrons.
|
|
Molecule
|
Two or more atoms held together by covalent bonds.
|
|
Single bond
|
A single covalent bond; the sharing of a pair of valence electrons by two atoms.
|
|
Structual formula
|
A type of molecular notation in which the constituent atoms are joined by lines representing covalent bonds
|
|
Molecular fortmula
|
A type of molecular notation representing the quantity of constituent atoms, but not the nature of the bond which bonds them.
|
|
Double bond
|
A couble covalent bond; the sharing of the pairs of valence electrons
|
|
Valence
|
The bonding capacity of a given atom usually equals the number of unpaired electrons required to complete the atoms outermost shell.
|
|
Nonpolar covalent bond
|
A type of covalent bond in which electrons are shared equally between two atoms of similar electronegativity.
|
|
Polar Covalent Bond
|
A covalent bond between atoms that differ in electronegativity. The shared electrons are pulled closer to the more electronegative atom, making it slightly negative, and the atom sligthly positive.
|
|
Ion
|
An atom or group of toms that has gained or lost one or more electrons, thus acquring a charge
|
|
Cation
|
A positively charged ion
|
|
Anion
|
A negatively charged ion
|
|
Ionic bond
|
The attraction between oppositely charged ions
|
|
Ionic compounds
|
A compound resulting from the formation of an ionic bond, also called a salt
|
|
Salts
|
A compound resulting from the formation of an ionic bond; also called an ionic compound
|
|
Hydrogen bond
|
A type of weak chemical bond that is formed when the slightly positive hydrogen atom of a polar covalent bond in one molecule is attracted to a slightly negative atom of a polar covalent bond in another molecule.
|
|
Vander Waals interactions
|
Weak attractions between weak molecules or parts of molecules that result from localized charge fluctuations.
|