Complex Cmpd And Ions Flashcards
1
Q
Define ligand
A
Anion or neutral molecule containing at least one lp of e;
used to form dative bonds with its central metal atom or ion
2
Q
How is a complex formed?
A
Central metal ion that is datively bonded to surrounding ligands
3
Q
How are ligands been classified?
A
no of dative bonds they are able o form with central atom
4
Q
Coordination no is?
A
No of dative bonds formed bt ligands and central metal atom or ion
5
Q
Ligand exchange
A
Ligands datively bonded to the central metal or ion is replaced w other ligands;
No change in OS of central metal atom or ion
6
Q
Two reasons why T. ions have strong tendency to form complex ions
A
- High charge density
- >attract lp electron of surrounding water towards itself - Empty available orbitals
-> overlap with lp e on water ligands;
=>dative bonds
7
Q
Define complex
A
Formed when a central metal atom or ion is bonded to a group of atoms, molecules or ions;
called ligands by dative bonds
