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 changed since it was first created.
Describe one way the modern periodic table is different from Mendeleev's periodic table.
Explain why Mendeleev's periodic table was considered revolutionary for its time.
Explain why the discovery of noble gases required changes to the periodic table.
What is a 'period' in the periodic table?
What is the main advantage of arranging elements by atomic number rather than atomic mass?
What is the main purpose of the periodic table?
What is the name of the law that states the properties of elements are a periodic function of their atomic numbers?
What was the main problem with Mendeleev's periodic table? (1) It did not leave gaps (2) It was based on atomic number (3) Some elements did not fit the order of atomic mass (4) It included all known elements
Which of the following best describes a 'group' in the periodic table? (1) A horizontal row (2) A vertical column (3) A diagonal line (4) A block of metals
Which of the following elements was predicted by Mendeleev before it was discovered? (1) Gallium (2) Neon (3) Argon (4) Helium
Which of the following is NOT a contribution of Mendeleev to the periodic table? (1) Arranged elements by atomic mass (2) Left gaps for undiscovered elements (3) Arranged elements by atomic number (4) Predicted properties of new elements
Fill in the blank: The first periodic table was based on increasing _________.
Fill in the blank: The periodic table allows scientists to see patterns in the ________ of elements.
Fill in the blank: The periodic table is a chart that organizes elements according to their ________ properties.
Fill in the blank: The periodic table is an important tool in ________.
True or False: Mendeleev left gaps in his periodic table for elements that had not yet been discovered.
True or False: The Law of Octaves states that every eighth element has similar properties.
True or False: The periodic table has changed over time as new elements have been discovered.
True or False: The periodic table is a static chart that never changes.
