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Indian Navy INET Periodic Classification of Elements — practice questions

Explore 4 free Periodic Classification of Elements questions in Indian Navy INET Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Periodic Classification of Elements questions and exercises with answers

Showing questions 1–4 of 4.

CLASS10 · Chemistry · Periodic Classification — Group NamesRead the answer and worked solution →How does metallic character change down a group?Read the answer and worked solution →Which one of the following elements exhibit maximum number of valence electrons?Read the answer and worked solution →Which of the following elements would lose an electron easily?Read the answer and worked solution →

Worked practice questions

CLASS10 · Chemistry · Periodic Classification — Group Names

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Matching pairs
  1. Left
    Group 1
    Right
    Alkali metals
  2. Left
    Group 2
    Right
    Alkaline earth metals
  3. Left
    Group 17
    Right
    Halogens
  4. Left
    Group 18
    Right
    Noble gases
  5. Left
    Mendeleev
    Right
    Father of modern periodic table
  6. Left
    Period
    Right
    A horizontal row in the periodic table
Instructions
Match each periodic-table term to its description.

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How does metallic character change down a group?

  1. Stays constant
  2. Decreases
  3. Increases
  4. Varies randomly
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Correct answer: C. Increases

1. Down a group, atomic radius grows so outer electrons are loosely held. 2. Atoms therefore lose electrons more easily, becoming more metallic. 3. Caesium is more metallic than sodium for this reason. 4. So metallic character increases down a group. 5. The opposite holds across a period. _Source: syllabus Science Ch 5 'Periodic Classification of Elements'_

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Which one of the following elements exhibit maximum number of valence electrons?

  1. Na
  2. Al
  3. Si
  4. P
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Correct answer: D. P

This Periodic Classification of Elements item tests a core Chemistry concept. Correct answer: P. _Source: syllabus Exemplar Science Class 10_

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