transition element Definitions

Question 1

variable oxidation

Answer 1

as transition metal shows some 3d/4s energy level. they have approximetaly the same 3d and 4s energy level that has same energy so electrons can remove from 4s as well as 3d

Question 2

ligand

Answer 2

anion or molecule that has lone pair that can donate its lone pair to the transition metal ion and form a dative covalent bond

Question 3

coordination number

Answer 3

number of ligand surrounded the transition metal ion

Question 4

complex ion

Answer 4

transition metal ion surrounded by ligand

Question 5

why transition metal forms complexes?

Answer 5

1) higher nuclear charge 2) smaller atomic size 3) empty or incomplete 3d subshell

Question 6

why cl replaced water or any other stronger ligand the H20?

Answer 6

to make a stronger dative bond

to change the position of equilibrium

Question 7

monodentate

Answer 7

ligands that donate one lone pair to the transition metal ion and form a dative covalent bond

Question 8

bidentate

Answer 8

ligands that donate 2 lone pair of electrons to the transition metal in and form a dative covalent bond