1.2 - Ionic bonding Flashcards
1
Q
Describe how ionic bonding holds ions together (4)
A
- Ionic bonding holds oppositely charged ions together in giant structures
- strong electrostatic forces act in all directions
- each ion in the giant structure, or lattice, is surrounded by ions with the opposite charge
- therefore, every ion is held firmly in place
2
Q
Why are the giant structures formed by ionic bonding so regular?
A
The ions all pack together neatly
3
Q
What does the ratio of ions in the structure of an ionic compound depend on?
A
The charges on the ions
4
Q
What do we use dot and cross diagrams to represent?
A
The atoms and ions involved in forming ionic bonds. We only show electrons in the outermost shell
5
Q
Describe the shape of the structure of sodium chloride.
A
Sodium chloride contains equal numbers of sodium ions and chlorine ions as shown by its formula NaCl. The sodium ions and chlorine ions alternate to form a lattice.
