History of the Periodic Table
Chemistry ⇒ Atomic Structure and the Periodic Table
History of the Periodic Table starts at 8 and continues till grade 12.
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See sample questions for grade 10
Describe how the discovery of noble gases affected the periodic table.
Describe one major difference between Mendeleev’s periodic table and the modern periodic table.
Describe the main contribution of Glenn Seaborg to the periodic table.
Explain the Law of Octaves proposed by John Newlands.
Explain why Mendeleev sometimes placed elements out of order of increasing atomic mass.
Explain why the discovery of isotopes posed a challenge to Mendeleev’s periodic table.
Explain why the periodic table is considered a predictive tool in chemistry.
Name one element that was discovered after Mendeleev’s periodic table and fit into a gap he had left.
Name the scientist who first grouped elements into triads.
Which element’s discovery confirmed Mendeleev’s prediction and increased acceptance of his periodic table?
Which scientist discovered that the atomic number, not atomic mass, determines the order of elements in the periodic table?
Which scientist’s classification of elements was based on their chemical reactivity and metallic/nonmetallic character?
Which scientist’s periodic table was based on the Law of Octaves?
Which scientist’s work resolved the placement of isotopes in the periodic table?
Who is credited with creating the first widely recognized periodic table of elements?
Who was the first to classify elements into metals, nonmetals, and metalloids?
