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 how the periodic table has evolved since its first creation.
Describe one major difference between Mendeleev’s periodic table and the modern periodic table.
Describe the significance of the discovery of noble gases for the periodic table.
Explain how the discovery of isotopes challenged Mendeleev’s arrangement of the periodic table.
Explain why Mendeleev’s periodic table was considered superior to previous attempts at classifying elements.
Explain why the periodic table is considered one of the most important tools in chemistry.
Explain why the position of hydrogen is unique in the periodic table.
Name one element whose properties were predicted by Mendeleev before it was discovered.
Which of the following best describes a 'group' in the periodic table? (1) A horizontal row (2) A vertical column (3) A block of metals (4) A set of noble gases
Which of the following elements was discovered after Mendeleev predicted its existence? (1) Helium (2) Gallium (3) Neon (4) Argon
Which of the following is a correct statement about the modern periodic law? (1) Properties of elements are a function of atomic mass (2) Properties of elements are a function of atomic number (3) Properties of elements are random (4) Properties of elements are a function of density
Which of the following is NOT a contribution of Mendeleev to the periodic table? (1) Predicting new elements (2) Arranging by atomic number (3) Leaving gaps for undiscovered elements (4) Grouping elements by properties
Fill in the blank: Mendeleev’s periodic table was published in the year ________.
Fill in the blank: The first periodic table was based on increasing _________.
Fill in the blank: The modern periodic law was given by ________.
Fill in the blank: The periodic table is an arrangement of elements in order of increasing ________ number.
True or False: Mendeleev left gaps in his periodic table for undiscovered elements.
True or False: The noble gases were included in Mendeleev’s original periodic table.
True or False: The periodic law states that the properties of elements are a periodic function of their atomic numbers.
True or False: The periodic table has changed over time as new elements have been discovered.
