d and f BLOCK ELEMENTS

Who proposed that the properties of elements are a periodic function of their atomic weights?

• Lothar Meyer
• Henry Moseley
• Antoine Lavoisier
• Dmitri Mendeleev

According to the text, what made Mendeleev's predictions bold?

• They were based on dreams.
• They were made without any data.
• They contradicted known physics.
• They were quantitative and successfully matched experimental findings.

What was the formula of the chloride predicted for Eka-silicon?

• ECl
• ECl2
• ECl3
• ECl4

Which element did Mendeleev predict would be found under Aluminium in his table?

• Gallium
• Germanium
• Eka-silicon
• Eka-aluminium

What is the predicted density of Eka-silicon according to Mendeleev?

• 5.9 g/cm3
• 5.36 g/cm3
• 5.5 g/cm3
• 5.0 g/cm3