Transcript covalent bond

Chemical
Compounds
Vocabulary
bent shape
• Molecules with a ___ shape are
tricky because they may appear
linear from certain angles.
covalent bond
• A ____ bond is formed when the
atoms in a compound are sharing
2 or more pairs of electrons (can
be single, double or triple and
polar or nonpolar).
crystalline structure
• Typically, ionic compounds have a ____
structure (form crystals), which although
they may have color, they are brittle,
transparent and grow in tiny block like
groups.
double bond
• A ____ is formed when 4
electrons are shared in a bond.
ductility
• ____ is the ability to draw metal
into wire.
electrical conductivity
• ___ is the ability of a substance to
transfer electricity (the flow of
electrons).
electron pair geometries
• ___ are the shapes that
molecules take under the VSEPR
theory.
electronegativity
• ____ is the tendency for an atom
to attract electrons to itself when it
is chemically combined with
another element.
hydrogen bond
• A ______ or 'bridges' are the
weak attraction between the
positive and negative end of a
polar molecule, such as the
Hydrogen and Oxygen in water.
ionic bond
• The ___ is referred to as the
electrostatic attraction that binds
oppositely charged ions together.
Lewis Dot Structure
• A _____ is used to depict how a
compound is formed between
atoms.
linear shape
• ___ molecules have their atoms
in a line.
malleability
• _____ is the ability of metal to be
shaped or flattened.
metallic bond
• A _____ is the attraction between
positive ions and surrounding
mobile electrons.
molecules
• All compounds are ____, which
are 2 or more different atoms
bonded together.
non-polar bond
• A ____ is formed when the
atoms in a compound are sharing
(covalent bond) the electrons
evenly.
polar bond
• A _____ is formed when one or
more pairs of electrons are
shared (making it covalent)
unequally.
polar molecule
• A ____ molecule must have polar
bonds with a positive and
negative end, with a shape that
has a positive and negative end
like a tiny magnet.
representative unit
• _____ refers to the species
present in a substance - usually
atoms, molecules, or formula
units (ions) - it’s the smallest we
can get and still have the same
properties of our sample.
shared electrons
• ___ are found inside of a covalent
bond.
single bond
• In a _____, a single pair of
electrons is shared between 2
atoms.
tetrahedral shape
• The ___ looks like a 4 point star
or plus sign molecule, with 4
single bonds.
thermal conductivity
• ___ is the ability of a substance to
transfer heat energy.
trigonal planer
• Molecules with a ___ shape
contain a double bond.
triple bond
• In a ____, 6 electrons are shared
between 2 atoms.
unshared pairs
• The pairs of electrons that are
around an atom, but not part of a
bond, are called ___.
VSEPR theory
• ____ explains why compounds form the
same shapes every time they form,
because the positive and negative parts
are pushing and pulling against each
other like tiny magnets, so they become
electrostatically balanced. Stands for
VALENCE SHELL ELECTRON PAIR
REPULSION