C18 Terms Flashcards
octet rule
Atoms are generally the most stable when they have eight electrons
electron affinity
A measure of how well atoms attract and hold electrons
electronegativity
A scale to compare an atoms ability to attract and hold atoms
covalent bond
A chemical bond in which two atoms usually nonmetals share a pair of electrons
ionic bond
A chemical bind formed by the electrostatic attraction of oppositely charged ions
metallic bond
A chemical bond characteristic of metals in which the atoms freely share their few valence electrons with all the other atoms
Lewis structure
A pair of dots between the symbols
double bond
When each atom shares two electrons
triple bond
When each atom shares three electrons
polyatomic molecule
Molecules of three or more atoms
polar covalent bond
Uneven electron sharing
nonpolar bond
When diatomic elements form bonds with no polarity
covalent compound
Consist of covalently bonded molecules
ionic compound
Substances formed by ionic bonds
crystal latticework
An orderly pattern appears as positive and negative ions line up
formula unit
The smallest ratio of elements in an ionic compound that describes its chemical composition
unit cell
When ionic crystal lattices are formed
electrolyte
A substance that produces ions when it dissolves in a liquid
electron sea theory
Where electrons float between atoms
free electron theory
Where electrons float between atoms
Why do atoms form chemical bonds?
The arrangement and number of electrons
What are the two main ways atoms can acquire a full outer energy level?
Idk
(True or false) the type of chemical bond between atoms often determines many of the chemical and physical properties of an element or compound.
True
How is electron dot notation useful for predicting the number of covalent bonds a nonmetal atom can form?
It shows the dot and arranges them
