24.2 complex ions

Question 1

what is a complex ion?

Answer 1

when a ligand binds to a central metal ion

Question 2

what is a ligand?

Answer 2

molecule which donates a pair of electrons to form a dative covalent bond with the central metal ion

Question 3

what is the coordination number?

Answer 3

number of coordinate bonds attached to the central atom

Question 4

what is a monodentate ligand?

Answer 4

one which can form a single coordinate bond

Question 5

what is a bidentate ligand?

Answer 5

one which can form two coordinate bonds

Question 6

what shape does a 6 coordinate complex lead to?

Answer 6

octahedral

Question 7

what is the angle in an octahedral shape?

Answer 7

90 degrees

Question 8

what shapes does a 4 coordinate complex lead to?

Answer 8

square planar
tetrahedral

Question 9

what is the angle in a tetrahedral shape?

Answer 9

109.5 degrees

Question 10

what is the condition for a complex ion to be square planar?

Answer 10

it’s central metal must have 8 electrons in it’s d-orbitals

Question 11

what is the angle in a square planar shape?

Answer 11

90 degrees