Valence Shell Electron-Pair Repulsion (VSEPR) Game

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Valence Shell Electron-Pair Repulsion (VSEPR) Game

• Guaranteed to be fun (at least as much as
  chemistry can be)

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Heres how it goesRead the question Choose the
correct answerAnd . . . dont cheat and use a
table because this is meant for you to learn the
shapes (we know you can use a table otherwise you
wouldnt be in high school) If you choose a
wrong answer, you will be told why its wrong.
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Disclaimer
When it is said that a molecule has a certain
number of electron pairs it is implied that the
central atom has that many number of electron
pairs not the entire molecule.
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We Start Out Easy . . .
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A molecule with two electron pairs and no lone
pairs is what shape?
a. Tetrahedral b. Bent c. Linear d. Seesaw
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Three Cheers For You!!!!
CHEERS
CHEERS
CHEERS
Linear does indeed have two coupled electron
pairs.
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If a molecule had six electron pairs and two lone
pairs, what would its shape be?
a. Octahedral b. Trigonal bipyramidal c.
Linear d. Square planar
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Bien!
What else needs to be said, you obviously knew
the right answer somehow.
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If a molecule has five electron pairs and one is
a lone pair, what is its shape?
a. Seesaw b. Linear c. Trigonal pyramidal d.
Square pyramidal
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Well, isnt that an astute observation.
Especially because its correct.
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If a molecule has three electron pairs and one
lone pair, what is its shape?
a. Tetrahedral b. Bent c. T-shaped d. Trigonal
Bipyramidal
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Congratulations for choosing the correct answer.
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If a molecule has four electron pairs, what set
of shapes could it be?
a. Trigonal planar, T-shaped, Linear b.
Tetrahedral, Trigonal pyramidal, Bent c. Bent,
Square Planar, Trigonal Bipyramidal d. Seesaw,
Octahedral, Square pyramidal
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Yahoo!!!
You Got It Right!!!!!!!!! Yeah!!!!!!!
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If a molecule has six electron pairs, which shape
can it NOT be?
a. Octahedral b. Trigonal bipyramidal c. Square
pyramidal d. Square planar
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Outstanding! Yet another one correct.
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Time to get a little harder . . .
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Which of these do NOT have two lone pairs?
a. H2O b. NH2- c. ClF3 d. XeF2
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Got the right answer?Yes, You do!
XeF2 has three lone pairs. By the way its also
linear.
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Which of the following has one lone pair?
a. BF3 b. H2O c. IF5 d. PCl5
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YEAH!!!!!
You got the right answer IF5
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Lets switch gears now
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H2O has what shape
a. Tetrahedral b. Square Planar c. Bent d. Linear
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Correct!

• H2O has four electron pairs and two lone pairs
  making it bent.

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Co2 has what shape
a. Linear b. Trigonal planar c. See-Saw d.
Trigonal pyramidal
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Yeah!
Co2 has two electron pairs and no lone pairs
which means that its linear (but you already
knew that).
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CH4 has what shape
a. Trigonal pyramidal b. Octahedral c.
Tetrahedral d. Seesaw
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Hurray!
Methane (CH4) has four electron pairs, none of
which are lone pairs. Thus, the correct answer
is . . . Thats right you guessed it.
Tetrahedral.
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BF3 has what shape
a. Trigonal planar b. Tetrahedral c. Linear d.
Bent
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Bravo!
BF3 has three electron pairs, and none of them
are lonely meaning that its trigonal planar.
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Which of these is incorrectly identified?
a. SF6 octahedral b. XeF2 bent c. CO32- -
trigonal planar d. BrF5 square pyramidal
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Correct.
XeF2 is linear
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Which of these is trigonal bipyramidal?
a. ClO4- b. SeO3 c. AsF5 d. BrF5
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Youre Right!
AsF5 is trigonal bipyramidal
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This concludes the fun part of Chemistry (at
least the part dealing with things you cant even
see, so why should you know what shape they
create). I am now declaring you . . .
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The Winner!
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Tetrahedral molecules have four electron pairs
with no lonely ones.
I'M SORRY
Try again.
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Bent molecules have two different combinations.
Three electron pairs, one lone pair. Four
electron pairs, two lone pairs
I'm Sorry.
Try Again.
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Seesaw molecules have five electron pairs, one
lone pair.
I'm Sorry.
Try Again.
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Octahedral molecules have six electron pairs and
no lone pairs.
My Regrets.
Try Again.
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Trigonal Bipyramidal molecules have five electron
pairs, none of which are lonely.
My Apologies.
Try Again.
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Linear has two different electron configurations.
Two electron pairs, no lone pairs. And five
electron pairs, three lone pairs.
Im Sorry.
Try Again.
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Linear has two different electron configurations.
Two electron pairs, no lone pairs. And five
electron pairs, three lone pairs.
Im Sorry.
Try Again.
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Trigonal Pyramidal molecules have four electron
pairs and unfortunately one of them is lonely.
Im Sorry.
Try Again.
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Square Pyramidal molecules have six electron
pairs and one lone pair.
My Regrets.
Try Again.
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Tetrahedral molecules have four electron pairs
and no lone pairs.
Im Sorry.
Try Again.
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T-shaped molecules have five electron pairs and
two lone pairs.
I'm Sorry.
Try Again.
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Trigonal Bipyramidal molecules have five electron
pairs, none of which are lonely.
My Apologies.
Try Again.
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Trigonal planar has three electron pairs,
T-shaped has five, and Linear can have either
five or two.
Im Sorry.
Try Again.
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Bent molecules can have either three or five
electrons, Square planar has six, and Trigonal
Bipyramidal has five.
Im Sorry.
Try Again.
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Seesaw has five electrons, Octahedral has six,
and Square Pyramidal has six.
My Regrets.
Try Again.
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Octahedral molecules have six electron pairs.
Im Sorry.
Try Again.
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Square Pyramidal molecules have six electron
pairs.
Sorry.
Try Again.
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Square Planar molecules have six electron pairs.
Im Sorry.
Try Again.
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H2O has two lone pairs.
Im Sorry.
Try Again.
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NH2- has two lone pairs.
Im Sorry.
Try Again.
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ClF3 has two lone pairs.
Im Sorry.
Try Again.
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BF3 doesnt have any lone pairs at all.
So Sorry.
Try Again.
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H2O has two lone pairs.
My Regrets.
Try Again.
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PCl5 doesnt have any lone pairs.
My Sympathies.
Play Again?
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Tetrahedral molecules have four electron pairs
and no lone pairs. Water doesnt.
So Sorry.
Ready to try again?
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Square Planar molecules have six electron pairs
and two lone pairs. Water doesnt.
Sorry about that.
How about another go round?
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Linear molecules either have two electron pairs
and no lone pairs or five electron pairs and
three lonely ones. Water doesnt.
OOPS!
Lets try again, shall we?
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Trigonal planar molecules have three electron
pairs and no lone pairs. Carbon dioxide doesnt.
My Deepest Apologies.
Please Try Again.
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Seesaw molecules have five electron pairs and one
lone pair. Carbon dioxide doesnt.
SORRY
Will you try again, please?
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Trigonal pyramidal molecules have four electron
pairs and no lone pairs. Carbon Dioxide doesnt.
Terribly Sorry, Mate.
Try again, Chap?
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Trigonal pyramidal molecules have four electron
pairs and no lone pairs. Methane doesnt.
OUCH!!!
Try Again?
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Octahedral molecules have six electron pairs and
no lone pairs. Methane doesnt.
Nice Try!
Wanna Try Again?
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Seesaw molecules have five electron pairs and one
lone pair. Methane doesnt.
Im Sorry.
Would you like to try again?
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Tetrahedral molecules have four electron pairs
and no lone pairs. Boron tetrafluoride doesnt.
Sorry, Pardner.
Take another gander?
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Linear molecules either have two electron pairs
and no lone pairs or five electron pairs and
three lonely ones. Boron tetrafluoride doesnt.
My Regrets, Im Sure.
Try Again?
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Bent molecules have two different combinations.
Three electron pairs, one lone pair. OR Four
electron pairs, two lone pairs. Boron
tetrafluoride has neither combination.
Hello?
Another time?
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SF6 has six electron pairs that arent lonely
meaning it really is octahedral.
Terribly Sorry.
Take another shot.
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The carbonate ion has three unlonely electron
pairs, which means that it is genuinely trigonal
planar.
Incorrect!
Try Again.
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BrF5 has six electron pairs, but one is sad and
lonely so its in the shape square pyramidal.
SORRY!
Try Again?
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ClO4- is tetrahedral.
ERRRRR!
Try Again?
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SeO3 is Trigonal Planar.
SORRY!
Again?
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BrF5 is Square Pyramidal.
Wrong!
Try Again?