Chapter 3 Flashcards
Elements combine with each other to form what
compounds
what holds atoms together
chemical bonds
what does chemical bonds result from
attractions
between the charged particles (the
electrons and protons) that compose
atoms.
which occur between
metals and nonmetals—involve the transfer of electrons from one atom to another.
ionic bonds
These oppositely charged ions attract one
another by electrostatic forces and form an what
ionic bond
a regular three-dimensional
array
lattice
ionic bonds result in what
ionic compounds
which occur between
two or more nonmetals—involve the
sharingof electrons between two atoms.
covalent
The covalently bound atoms compose a
molecule
we call covalently bonded compounds
molecular compounds
A compound is represented with its
chemical formula
elements
present in the compound and the
relative numbers of atoms or ions.
chemical formulas
gives the relative
number of atomsof each element in a
compound.
empirical formula
gives the actual
number of atoms of each element in a
molecule of a compound.
molecular formula
uses lines to
represent covalent bonds and shows how
atoms in a molecule are connected or
bonded to each other.
structural formula
uses lines to
represent covalent bonds and shows how
atoms in a molecule are connected or
bonded to each other.
structural formula
is a more
accurate and complete way to
specify a compound.
molecular model
represents atoms as
balls and chemical bonds as
sticks
ball-and-stick molecular
model
how the two connect in the ball-and-stick molecular
model reflects what
a molecule’s shape.
atoms
fill the space between each other to more
closely represent our best estimates for
how a molecule might appear if scaled
to visible size.
space-filling molecular model
exist in nature with single
atomsas their basic units.
atomic elements
Most elements
fall into this category.
atomic elements
Most elements
fall into this category.
molecular elements
don’t exist n nature with a molecule as their base
Most elements
fall into this category.
two
or more atoms of the element bonded
together.
molecules