1. Pb
2. Al
3. Zn
4. Hg
Al
1. Bauxite
2. Magnetite
3. Smaltite
4. Haematite
Haematite
1. Hemimorphite
2. EpsomiteMillerite
3. Millerite
4. Argentite
Hemimorphite
1. Sodium
2. Magnesium
3. Calcium
4. Iron
Sodium
1. Galena
2. Cinnabar
3. Fluorspar
4. Copper glance
Fluorspar
1. Vitamin C
2. Vitamin B6
3. Vitamin A
4. Vitamin B12
Vitamin B6
1. Wrought iron
2. Cast iron
3. Pig iron
4. Steel
Pig iron
1. C
2. Mg
3. Al
4. H2
C
1. Titanium
2. Silver
3. Vanadium
4. Zinc
Silver
1. Highly electropositive metals
2. Highly electronegative metals
3. Metalloids
4. Lanthanides only
Highly electropositive metals