VSPER
THERE COULD BE ZERO OR THREE LONE PAIRS OF ELECTRONS IN THIS GEOMETRY, BUT NOTHING IN BETWEEN
WHAT IS LINEAR
THE LIGHTEST ELEMENT ON THE PERIODIC TABLE
WHAT IS HYDROGEN?
theory to predict the shape of molecules
WHAT IS VESPR?
Reaction gives off energy
WHAT IS EXOTHERMIC?
formula reduced to lowest terms
WHAT IS EMPIRICAL FORMULA?
THE NAME IS MISLEADING: THIS GEOMETRY ONLY HAS SIX OUTER ATOMS
WHAT IS OCTAHEDRAL
EXAMPLES OF THIS GROUP INCLUDE FLUORINE, CHLORINE, AND BROMINE
WHAT ARE HALOGENS?
If two atoms have half-filled orbitals, the interactions balance at a small enough distance so the e–’s can be close to both nuclei at the same time
must be named using mono-, di-, tri-, tetra-, penta-, hexa-, hepta-, octa-, nona-, deca-.
is found by simply summing the atomic masses (on the periodic table) of each atom in a formula
WHAT IS FORMULA (OR MOLECULAR MASS)?
BOND ANGLES ARE PRECISELY 109.5 DEGREES IN THIS MOLECULAR GEOMETRY
WHAT IS TETRAHEDRAL
THEY MAKE SPECIAL DETECTORS FOR THIS RADIOACTIVE NOBLE GAS
WHAT IS RADON?
atomic symbol surrounded by valence electrons
WHAT IS LEWIS SYMBOL?
do NOT use di-, tri-, etc. unless they are part of the ion name ionic compounds are named as the positive and negative ion.
WHAT IS IONIC COMPOUND?
Actual Yield/ Theoretical Yield x 100
WHAT IS PERCENT YIELD?
THIS MOLECULAR GEOMETRY SOUNDS MORE LIKE A PLAYGROUND FEATURE
WHAT IS SEE-SAW
IT'S THE ONLY LETTER THAT DOESN'T APPEAR ON THE PERIODIC TABLE
WHAT IS J?
bonds have partial charges + and –
WHAT IS POLAR BONDS?
implies a fuel and three chemicals: O2, CO2, and H2O.
WHAT IS COMBUSTION REACTION?
1 mole of any substance contains 6.02 x 1023 molecules
WHAT IS AVOGADROS NUMBER?
VSEPR IS AN ACRONYM FOR THIS PHRASE
WHAT IS VALENCE SHELL ELECTRON PAIR REPULSION?
THIS METAL IS SO SOFT, IT MELTS IN YOUR HANDS
WHAT IS GALLIUM?
Many ions can be explained because they have gained or lost electrons and attain a full octet
equation with spectator ions removed
WHAT IS NET IONIC EQUATION?
1 mole 6.02 x 1023 molecules 1 mole 22.4 L 1 mole
WHAT IS MOLAR MASS?