d and f BLOCK ELEMENTS Quiz

• Mendeleev used atomic number, Meyer used atomic weight
• Mendeleev focused on gases, Meyer on solids
• Mendeleev used prediction of new elements, Meyer used graphical representation of properties
• Mendeleev worked alone, Meyer collaborated

• From a table to a list
• From focusing on atomic number to atomic weight
• From observing patterns in small groups to creating a comprehensive periodic system
• From predicting elements to measuring properties

• It proved elements could transform into each other
• It was purely coincidental
• It indicated elements were made of light
• It suggested a direct correlation between atomic weight and chemical behavior

• Nobel Prize in Chemistry in 1901
• Davy Medal from the Royal Society in 1887
• Copley Medal from the Royal Society in 1890
• Priestley Medal in 1900

• He discovered the electron
• He arranged elements by atomic number first
• He independently proposed the same fundamental principle and provided graphical evidence
• He predicted more elements than Mendeleev