Practice Modern Periodic Table (2.3) - Atoms and The Periodic Table

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8 questions

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Exercise
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6 sample questions

Question 1.
What does the atomic number represent?
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Consider what defines an element.
Question 2.
Who created the first periodic table?
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Think about historical figures in chemistry.
3Question 3.
What did Mendeleev organize the elements by?
- Atomic Number
- Atomic Mass
- Electron Configuration
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Consider the element arrangement in his table.
4Question 4.
True or False: Periods in the periodic table are arranged vertically.
- True
- False
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Think about how we read the table.
Question 5.
Analyze the periodic trends for reactivity among alkali metals and halogens. How do their properties change as you move down the groups?
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Consider how electron configurations affect these trends.
Question 6.
Compare and contrast the properties of Noble gases with those of Alkaline earth metals in terms of reactivity and electron configuration.
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Think about how the number of electrons in outer shells relates to chemical behavior.

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