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Chemistry Quiz: Classification of Elements and Periodicity in Properties
Class XI
Chemistry
Classification of Elements and Periodicity in Properties
15 questions
EASY
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Preview questions
1. What is the basis for the modern periodic table?
Atomic mass · Atomic number · Molecular weight · Density
2. Which group of elements is known as the alkali metals?
Group 1 · Group 2 · Group 17 · Group 18
3. What trend is observed in atomic radius across a period?
Increases · Decreases · Remains constant · Varies randomly
4. Which of the following elements is a noble gas?
Oxygen · Nitrogen · Neon · Carbon
5. What happens to the ionization energy as you move down a group?
Increases · Decreases · Remains the same · Varies unpredictably
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