2.4 Three types of chemical bonds are ionic, covalent, and hydrogen
a molecule in which one side of the molecule is slightly negative and the opposite side is slightly positive
polar molecule
example of an ionic bond
sodium chloride
the attractive force that holds atoms or ions together
chemical bond
an ion with a negative charge
anion
an ion with a positive charge
cation
A chemical bond that involves sharing a pair of electrons between atoms in a molecule
covalent bond
A molecule that has two poles
dipole
a grouping of electrons surrounding the nucleus of an atom
electron shell
attraction of an atom for an electron in a bond (when covalent bond is already formed)
electronegativity
atoms with one or two valence shell electrons
electropositive
What kind of bonds form between water molecules?
hydrogen bonds
weak attraction between a hydrogen atom and another atom
hydrogen bonds
A charged atom
ion
Formed when one or more electrons are transferred from one atom to another
ionic bond
what are the types of chemical bonds
ionic, covalent, hydrogen
a molecule that does not have oppositely charged ends
nonpolar molecule
States that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons
octet rule
outermost electron shell
valence shell
example of a covalent bond
water
what is an example of a dipole
water