Transition metals

Question 1

How do transition metals differ from other metals (4)

Answer 1

.Higher melting points
.Higher densities
.Stronger
.Harder

Question 2

Name a transition metal that doesn’t fit most trends and give a reason of why

Answer 2

Mercury - melting point of -39C so liquid at room temp

Question 3

How would one know that nickel is harder than potassium

Answer 3

Nickel is a transition metal whereas potassium is an alkali metal

Question 4

Compare the reactions of group 1 metals with oxygen and transition metals with oxygen

Answer 4

Group 1 metals react almost instantly with oxygen at room temp whereas transition metals will either react slowly or not at all

Question 5

Which transition metal can be used as a catalyst in the Haber process

Answer 5

Iron

Question 6

Which compound containing a transition metal increases the rate at which hydrogen peroxide decomposes into water and oxygen

Answer 6

Manganese oxide

Question 7

Give the chemical formula and colour of Iron(II) hydroxide

Answer 7

1. Fe(OH)2

2. Pale green

Question 8

What is meant by iron(II) and iron(III)

Answer 8

Iron(II) is an ion with a charge of 2+
Iron(III) is an ion with a charge of 3+

Transition can form ions with different charges

Question 9

Compare the reactions of group 1 metals with water and transition metals with water

Answer 9

Alkali metals: react vigorously to produce heat, a metal hydroxide and hydrogen gas
Transition metals: react very slowly or not at all. Iron will react to produce hydrated iron (iii) oxide or rust

Question 9

Compare the reactions of group 1 metals with oxygen and transition metals with water

Question 10

Compare the reactions of group 1 metals with halogens and transition metals with halogens

Answer 10

Alkali metals: react vigorously to form salt
Transition metals: some react such as iron:

iron + chlorine → iron(III) chloride