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Questions and Answers
What is the approximate basis of the periodic law?
What is the approximate basis of the periodic law?
What characterizes elements in the same group in the periodic table?
What characterizes elements in the same group in the periodic table?
How does metallic character change across a period in the periodic table?
How does metallic character change across a period in the periodic table?
What was the major contribution of Dmitri Mendeleev to the periodic table?
What was the major contribution of Dmitri Mendeleev to the periodic table?
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What is the significance of the four roughly rectangular areas called blocks in the periodic table?
What is the significance of the four roughly rectangular areas called blocks in the periodic table?
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Study Notes
Periodic Law and Periodic Table
- The periodic law states that the properties of elements recur periodically when the elements are arranged in order of their atomic weights.
Characteristics of Elements in the Same Group
- Elements in the same group in the periodic table have similar chemical properties due to the same number of electrons in their outermost energy level.
- They exhibit similar reactivity and form similar compounds.
Metallic Character Across a Period
- Metallic character decreases from left to right across a period in the periodic table due to the increase in nuclear charge.
- As you move left to right, elements change from metals to metalloids to nonmetals.
Dmitri Mendeleev's Contribution
- Dmitri Mendeleev developed the periodic table, arranging elements in a logical and systematic order.
- He predicted the existence of undiscovered elements and left gaps in the table for them.
Blocks in the Periodic Table
- The periodic table is divided into four blocks: s-block, p-block, d-block, and f-block.
- Each block corresponds to a specific orbital type and exhibits distinct chemical properties.
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Description
Test your knowledge of the periodic table with this interactive quiz. Challenge yourself with questions about element symbols, atomic numbers, and group properties. From alkali metals to noble gases, see how well you know the iconic arrangement of the chemical elements.
