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Questions and Answers
What does the periodic law state?
What does the periodic law state?
What is the trend for metallic character across a period in the periodic table?
What is the trend for metallic character across a period in the periodic table?
In which direction does nonmetallic character increase on the periodic table?
In which direction does nonmetallic character increase on the periodic table?
What fundamental discovery was recognized in the late 19th century related to the periodic table?
What fundamental discovery was recognized in the late 19th century related to the periodic table?
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Which chemist formulated the first generally accepted periodic table?
Which chemist formulated the first generally accepted periodic table?
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Study Notes
Periodic Law
- The periodic law states that the properties of elements recur periodically when the elements are arranged in order of their atomic weights.
Trends in Metallic and Nonmetallic Character
- Metallic character decreases across a period in the periodic table.
- Nonmetallic character increases from left to right and from bottom to top in the periodic table.
History of the Periodic Table
- In the late 19th century, the fundamental discovery was recognized that elements with similar properties recur at regular intervals when arranged in order of their atomic weights.
- The chemist Dmitri Mendeleev formulated the first generally accepted periodic table.
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Description
Test your knowledge of the periodic table and its arrangement of chemical elements. Explore the relationships between rows, columns, and blocks to understand the periodic law and the recurring properties of the elements.
