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WorksheetsUnderstanding Bonding in Chemistry
Total questions: 107
Worksheet time: 2hrs 27mins
The acronym VSEPR stand for
very strong electron pair repulsion.
varied symmetry electrostatic proton reaction.
venomous snakes enjoy pink ribbons.
valence shell electron pair repulsion.
VSEPR theory is used to predict
the number of unshared pairs of electrons in a Lewis structure.
the number of multiple bonds in a Lewis structure.
the three-dimensional geometry of a molecule.
the three-dimensional crystal lattice structure of ionic compounds.
Any molecule with only two atoms must be linear. Three-atom molecules such as BeCl2 can also be linear. For linear molecules, the bond angle is
360°
180°
120°
90°
Molecules such as boron trichloride that have three bonded atoms and no unshared pairs have what shape?
trigonal planar
trigonal pyramidal
trigonal bipyramidal
tetrahedral
What molecular geometry would PH3 have?
Trigonal Pyramidal
Trigonal Bipyramidal
Bent
Linear
What shape would this have?
Trigonal planar
Pyramidal
Tetrahedral
Bent
What shape is shown here?
Octahedral
Tetrahedral
Trigonal bipyramidal
Seesaw
Identify the molecule structure
Bent
Linear
Trigonal Planar
Pyramidal
AB3 is a symbol for molecular shape __________________
Tetrahedral
Linear
Trigonal planar
Trigonal pyramidal
The general formula for TETRAHEDRAL shape is __________
AB2
AB3
AB4
AB
This could be the dot diagram of
Mg
Cl
C
O
What is the goal of the Lewis Dot Structure?
To determine the electron position.
To show the element's valence electrons & bonding capabilities.
To find the atomic mass of an element.
To search for the number of electrons in an individual atom.
How many valence electrons should Lithium have in its Lewis dot model?
1
2
3
4
How many valence electrons should Oxygen have in its Lewis dot model?
5
6
7
8
How many valence electrons should Magnesium have in its Lewis dot model?
1
2
3
4
This is a correct dot diagram for nitrogen (N)
true
false
This is a correct dot diagram for carbon (C)
true
false
This is a correct dot diagram for neon (Ne)
true
false
How many electrons should Boron have around its Lewis dot model?
1
2
3
4
(Top picture is A, bottom picture is D.)
What do the dots in a Lewis dot structure represent?
Molecules.
Protons.
Valence electrons.
Atoms.
What is the Lewis dot structure for a neutral atom of bromine (35Br)?
The element symbol Br with 7 dots around it.
The element symbol Br with 8 dots around it.
The element symbol Br with 5 dots around it.
The element symbol Br with 35 dots around it.
What is the Lewis dot structure for a neutral atom of sodium (11Na)?
The element symbol Na with 11 dots around it.
The element symbol Na with 8 dots around it.
The element symbol Na with 1 dot around it.
The symbol Na with 2 dots around it.
What is the Lewis dot structure for a neutral atom of carbon (6C)?
The element symbol C with 5 dots around it.
The element symbol C with 4 dots around it.
The element symbol C with 2 dots around it.
The element symbol C with 8 dots around it.
What is the Lewis dot structure for a neutral atom of iron (26Fe)?
The element symbol Fe with 2 dots around it.
The element symbol Fe with 8 dots around it.
The element symbol Fe with 52 dots around it.
The element symbol Fe with 26 dots around it.
What is the Lewis dot structure for a neutral atom of phosphorus (15P)?
The element symbol P with 15 dots around it.
The element symbol P with 8 dots around it.
The element symbol P with 3 dots around it.
The element symbol P with 5 dots around it.
What is the Lewis dot structure for a neutral atom of xenon (54Xe)?
The element symbol Xe with 8 dots around it.
The element symbol Xe with 6 dots around it.
The element symbol Xe with 2 dots around it.
The element symbol Xe with 54 dots around it.
What is the Lewis dot structure for a neutral atom of boron (5B)?
The element symbol B with 2 dots around it.
The element symbol B with 8 dots around it.
The element symbol B with 5 dots around it.
The element symbol B with 3 dots around it.
What are valence electrons?
The innermost electrons
The outermost electrons
What is the octet rule?
Elements can only have 8 electrons in its outermost shell
The elements must form an octopus like structure
How many valence electrons does Carbon have
1
4
How many valence electrons does Argon have
8
11
Electron dot notation is . . . .
A representation of an element in which only valence electrons of an atom are shown
A representation of how compounds are formed.
Which of the elements in the picture has correct electron dot notation?
1
2
3
4
Is this compound Ionic or Covalent: Ca3(PO4)2
ionic
covalent
1
