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Science

Modern Periodic Table and Periodic Law

In this Class 10 Science topic from the chapter “Periodic Classification of Elements,” students learn how elements are arranged in the Modern Periodic Table according to increasing atomic number. They explore the meaning of periods and groups, the link between electronic configuration and position, and the periodic law explaining recurring patterns in properties. The topic also helps students understand trends such as valency, atomic size, and metallic and non-metallic character, making it easier to compare elements and predict their behaviour.

Easy · Level 1 · 7 questions

TOPIC PRACTICE

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  1. In increasing order of atomic number
  2. In increasing order of atomic mass
  3. In decreasing order of atomic number
  4. In alphabetical order
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  1. Group
  2. Period
  3. Block
  4. Series
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  1. They have the same number of valence electrons
  2. They have the same atomic number
  3. They have the same number of electron shells
  4. They have the same number of neutrons
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  1. Period
  2. Group
  3. Block
  4. Series
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  1. It decreases.
  2. It increases.
  3. It remains nearly unchanged.
  4. It first increases, then decreases.
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  1. Noble gases
  2. Halogens
  3. Alkali metals
  4. Transition metals

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