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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