ELECTRON DOT STRUCTURES: 1. Use your periodic table and draw an electron dot configuration. Place dots around the following element symbols to represent the number of electros in the outer shell. Remember, only the valence electrons are represented in the diagram, not the total number of electrons. IONIC BONDING PRACTICE: For each pair of elements that follows, answer questions A-F as shown in the following example:
1. Na and Cl
A. Name the elements. __________________ and _________________
B. How many valence electrons does each element have?
C. Draw a Lewis electron-dot diagram of each element
Na has _______ ; Cl has ______
Na
Cl
D. Draw arrows on the Lewis electron-dot diagram to show how the electrons move
E. What type of charge does each element form?
Na
F. What is the formula of the compound that is formed from these ions?
G. How would you name this compound?
Cl
For each pair of elements that follows, answer questions A-F as shown in the following example:
2. Li and F
A. Name the elements. ________________ and _____________________
B. How many valence electrons does each element have?
C. Draw a Lewis electron-dot diagram of each element
Li has _______ ; F has ______
Li
F
D. Draw arrows on the Lewis electron-dot diagram to show how the electrons move
E. What type of charge does each element form?
Li
F
F. What is the formula of the compound that is formed from these ions?
G. How would you name this compound?
3. K and Br
A. Name the elements.
B. How many valence electrons does each element have?
C. Draw a Lewis electron-dot diagram of each element
K has _______ ; Br has ______
K
Br
D. Draw arrows on the Lewis electron-dot diagram to show how the electrons move
E. What type of charge does each element form?
K
F. What is the formula of the compound that is formed from these ions?
G. How would you name this compound?
Br
You can use more than one atom of each element to make a stable compound! It’s like a
puzzle you have to figure out.
4. Ca and Cl
A. Name the elements.
B. How many valence electrons does each element have?
Ca has _______ ; Cl has ______
C. Draw a Lewis electron-dot diagram of each element
D. Draw arrows on the Lewis electron-dot diagram to show how the electrons move
E. What type of charge does each element form?
F. What is the formula of the compound that is formed from these ions?
G. How would you name this compound?
5. Ba and F
A. Name the elements.
B. How many valence electrons does each element have?
Ba has _______ ; F has ______
C. Draw a Lewis electron-dot diagram of each element
D. Draw arrows on the Lewis electron-dot diagram to show how the electrons move
E. What type of charge does each element form?
F. What is the formula of the compound that is formed from these ions?
G. How would you name this compound?
EXTRA CHALLENGING (OPTIONAL):
6. Al and O
A. Name the elements.
B. How many valence electrons does each element have?
C. Draw a Lewis electron-dot diagram of each element
Al has _______ ; O has ______
Al
O
D. Draw arrows on the Lewis electron-dot diagram to show how the electrons move
E. What type of charge does each element form?
F. What is the formula of the compound that is formed from these ions?
G. How would you name this compound?
6. Fe (III) and O
A. Name the elements.
B. How many valence electrons does each element have?
C. Draw a Lewis electron-dot diagram of each element
Fe has 3 valence e- ; O has ______
Fe
O
D. Draw arrows on the Lewis electron-dot diagram to show how the electrons move
E. What type of charge does each element form?
F. What is the formula of the compound that is formed from these ions?
G. How would you name this compound?5