1.5 Diagrams Flashcards
Dot and cross diagrams (ionic)
Advantages - shows the electron arrangement and charge on the ions.
Disadvantages - does not show how the ions are arranged, lattice structure or structure is giant.
2d ball and stick diagrams (ionic)
Advantages - shows the arrangement of ions in a layer of the crystal
Disadvantages - does not show the 3d shape.
The ions are actually close together.
Giving a false image of bond direction when it is only electrostatic attraction and not covalent bonds.
3d ball and stick diagrams (ionic)
Advantages - shows the 3d structure and the charges of the ions
the arrangement and type of ions in all directions
best for showing the number and type of ion in 3d
Disadvantages - the ions are actually close together, giving a false image of bond direction when it is only electrostatic attraction and not covalent bonds
Close packed diagrams (ionic)
Advantages - shows the structure in 3d and the charges on the ions.
the arrangement and type of ions in 2d and closeness of ions .
best for showing the way that ions are packed together.
Disadvantages - difficult to see the arrangement of ions in 3d.
Dot and cross diagrams (covalent)
Advantages - it shows the electron arrangement of the atoms and the covalent bonds formed.
shows double and triple bonds.
Disadvantages - does not show the shape of the molecule.
Ball and stick diagrams (covalent)
Advantages - it shows the shape of the molecule and the covalent bonds.
Disadvantages - does not show the electron arrangement and the atoms are actually close together.
Space filling model (covalent)
Advantages - shows the closeness of the atom, the size of the atoms and the shape.
Disadvantages - does not show the electron arrangement of the atoms or double or triple bonds.
difficult to see the arrangement of atoms in 3d.
Displayed formula 2d (covalent)
Advantages - Shows all the atoms and covalent bonds including double and triple bonds.
Disadvantages - Does not show the shape of the molecule.
The atoms are actually close together.
