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WorksheetsValence Electrons and Lewis Diagrams
Total questions: 25
Worksheet time: 32mins
Which of the following describes a valence electron?
Outermost from nucleus
Most energetic
Determines chemical properties and bonding
All options
How many valence electrons are every atom trying to obtain?
2
4
6
8
Atoms with few valence electrons (1-3) tend to do what with them?
Lose them
Gain more
Do nothing
Match the following valance electron trends to their correct response.
Lose them
Few valance electrons (1-3)
Gain them
More valence electrons (5-7)
Keep them
8 valence electrons
Lose or Gain
4 valence electrons
For some elements in groups, how can we determine the number of valence electrons they have just by looking at the periodic table?
Not possible
I have no clue
No consistent way
The group number they reside in
Match the method of determining valence electrons with the result
1 valence electron
Group 1
2 valence electrons
Group 2
Drop the 1
Groups 13-18
2 valence!
Helium
Look up
Groups 3-12, Lanthanides/Actinides
A Lewis Dot Diagram represents
A single atom of an element
The number of valence electrons
The movements of the valence electrons
All options
Place the steps of making a Lewis Dot Diagram in the correct order
Write element symbol
Determine number of valence electrons
Visualize/draw box around symbol
Place one dot per side initially
Add dots up to 2 per side until all are used
Fill in the blanks with all of the elements which could have 3 valence electrons (a) (b) (c) (d) (e)
Which of the following would have 2 valence electrons
Alkali metals
Alkaline earth metals
Halogens
Noble Gasses
Which of the following elements will have 5 valence electrons?
In
Ge
Sb
Rn
Cs
Valence electrons are the
outer most electrons in an atom
total electrons in an atom
This could be the dot diagram of
Mg
Cl
C
O
What is the "magic number" of valence electrons for atoms to be stable?
1
2
8
18
Neon is a noble gas because it is stable, nonreactive, and has ___ valence electrons.
1
8
10
4
What type of bonding does this picture show?
Ionic
Covalent
What type of bonding does this picture show?
Ionic
Covalent
Which of these element pairs would bond covalently?
Fr and K
Sc and O
F and Cl
He and Pt
The chemical bond between a metal and a non-metal will be a _____ bond.
metal
ionic
covalent
polar
How many valence electrons does Aluminum Have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
What is a double bond?
a bond between two atoms
one pair of electrons shared between two atoms
two pairs of electrons shared between two atoms
three pairs of electrons shared between two atoms
What is it called if there are three-pairs of electrons being shared?
Triple bond
Trigonal bond
Tri-bond
Three bonds
