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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Describe one major limitation of Mendeleev’s periodic table.
Describe the contribution of Glenn Seaborg to the periodic table.
Describe the main difference between Mendeleev’s periodic table and the modern periodic table.
Describe the significance of the gaps left by Mendeleev in his periodic table.
Explain how the periodic table helped in the discovery of new elements.
Explain how the periodic table reflects the electronic structure of atoms.
Explain the Law of Octaves as proposed by John Newlands.
Explain why the discovery of isotopes posed a challenge to Mendeleev’s periodic table.
Which group of elements was not included in Mendeleev’s original periodic table? (1) Alkali metals (2) Halogens (3) Noble gases (4) Transition metals
Which of the following best describes a ‘triad’ as used by Döbereiner? (1) A group of three elements with similar properties (2) Three elements with the same atomic number (3) Three elements in the same period (4) Three elements with the same density
Which of the following elements did Mendeleev predict and name as ‘eka-silicon’? (1) Germanium (2) Gallium (3) Scandium (4) Rubidium
Which of the following elements was predicted by Mendeleev before its discovery? (1) Germanium (2) Neon (3) Argon (4) Krypton
Fill in the blank: The discovery of ________ led to the reorganization of the periodic table by atomic number instead of atomic mass.
Fill in the blank: The element with atomic number 1 is ________.
Fill in the blank: The horizontal rows in the periodic table are called ________.
Fill in the blank: The periodic table is divided into blocks based on the ________ sublevel being filled.
State True or False: Lothar Meyer developed a periodic table independently of Mendeleev.
State True or False: The periodic table can be used to infer the electronic configuration of elements.
True or False: Mendeleev left gaps in his periodic table for elements that had not yet been discovered.
True or False: The periodic law states that the properties of elements are a periodic function of their atomic numbers.
