Ionic Compounds Flashcards
Bonding, Structure, and Properties of Matter (12 cards)
What structure do ionic compounds have?
Giant ionic lattice
Ionic compounds form a giant ionic lattice structure due to the arrangement of ions.
What type of attraction holds the ions together in ionic compounds?
Electrostatic attraction
The attraction occurs between oppositely charged ions.
What is a characteristic feature of the arrangement of ions in ionic compounds?
Closely packed regular lattice arrangement
This arrangement results in strong electrostatic forces in all directions.
What is an example of an ionic compound?
Sodium chloride (table salt)
Sodium chloride consists of Na+ and Cl- ions in a giant ionic lattice.
What does a ball and stick model represent in ionic compounds?
The regular pattern of ions
It shows how ions are arranged but may not accurately represent sizes or distances.
What are two properties of ionic compounds?
High melting points and high boiling points
These properties are due to strong bonds between the ions.
What happens to ionic compounds when they are solid?
They can’t conduct electricity
Ions are held in place and cannot move to carry charge.
What occurs when ionic compounds are melted or dissolved in water?
Ions are free to move and can carry electric charge
This allows for electrical conductivity in the liquid state.
How can you determine the empirical formula of an ionic compound?
Count the atoms and balance the charges
Use diagrams or 3D models to identify ions and their charges.
What charge does a potassium ion form?
1+ charge
Potassium is in Group 1 of the periodic table.
What charge does an oxide ion form?
2- charge
Oxygen is in Group 6 of the periodic table.
Fill in the blank: The empirical formula for potassium and oxide ions is _______.
K2O
Two potassium ions are needed to balance the 2- charge of one oxide ion.
