2.3 Chemical Bonds Flashcards
Chemical Bonds
-provides stability
-atoms are more stable when they have a full valence shell (octet rule)
Lose or gain electrons
-depends on attraction for valence electrons.
-Weak = lose
-Strong = gain
What is Electronegativity
The measure of how strongly atoms attract new bonding electrons to themselves.
Non polar covalent bond
-Bonding electrons shared equally between two atoms.
Polar covalent bond
-Bonding electrons shared unequally between two atoms.
Ionic bonding
-Occurs between atoms with a large difference in electronegativity.
-opposite sides of the periodic table.
What is the difference between polar and non polar covalent bonds?
Polar means there is unequal sharing of electrons, while non polar means equal sharing.
When given two atoms, what type of bond will form between them and why?
There are primarily two forms of bonding that an atom can participate in: Covalent and Ionic. Covalent bonding involves the sharing of electrons between two or more atoms. Ionic bonds form when two or more ions come together and are held together by charge differences.
Ions separate atoms in …
Ionic substance
Individual molecules are still intact in …
Covalent substance
A covalent bond forms between
two nonmetal atoms
What forms when two pairs of electrons are being shared?
double bond
What forms when three pairs of electrons are being shared?
triple bond
Which binds tend to be the strongest?
triple bonds
