Lewis Dot Structures
What is a Lewis dot structure?
A diagram that shows valence electrons
What is the formula for sodium chloride?
NaCl
What is the name of CaO?
Calcium oxide
What charge does a fluoride ion have?
-1
What is NaCl used for?
table salt
Draw the Lewis structure for NaCl
Na gives its 1 valence electron
What is the formula for water?
H₂O
What is the name of NaCl?
Sodium chloride
What charge does a sodium ion (Na⁺) have
+1
Why do we need calcium?
Bones and teeth
What happens to electrons in an ionic bond?
Electrons are transferred from a metal to a nonmetal
Write the formula for potassium oxide
K₂O
What is the name of K₂S?
Potassium sulfide
Do ionic compounds have high or low melting points?
High melting points
What is an ionic compound in toothpaste?
Fluoride
What is the formula for sodium chloride?
NaCl
What is the formula for oxygen gas?
O₂
What is the name of FeCl₃
Iron (III) chloride
Do ionic compounds conduct electricity?
Yes, in water
What are electrolytes?
Ions like Na⁺, K⁺, Cl⁻ that help in the body
What charge does oxygen have in an ionic bond?
-2
What is the formula for carbon dioxide?
CO₂
What is the name of (NH₄)₂SO₄
Ammonium sulfate
Why are ionic bonds strong?
Because opposites attract
Why is salt used on roads in winter?
It melts ice by lowering the freezing point