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ICSE Class 10 Periodic Table & Periodic Properties — practice questions

Explore 99 free Periodic Table & Periodic Properties questions in ICSE Class 10 Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Periodic Table & Periodic Properties questions and exercises with answers

Showing questions 1–30 of 99.

Judge these periodic table trendsRead the answer and worked solution →The modern periodic law was given by whom?Read the answer and worked solution →How many groups and periods are in the modern periodic table?Read the answer and worked solution →Which group is known as the alkali metals?Read the answer and worked solution →Which group contains the noble gases?Read the answer and worked solution →What is the trend in atomic radius across a period from left to right?Read the answer and worked solution →Atomic radius down a group:Read the answer and worked solution →Which block of the periodic table includes the transition elements?Read the answer and worked solution →Which property generally INCREASES across a period?Read the answer and worked solution →Which property INCREASES down a group?Read the answer and worked solution →Why does atomic radius decrease across a period?Read the answer and worked solution →Which of these elements has the highest first ionisation energy?Read the answer and worked solution →Which series shows elements in order of decreasing atomic radius?Read the answer and worked solution →Which is the most reactive non-metal in the periodic table?Read the answer and worked solution →Which oxide is amphoteric?Read the answer and worked solution →What is the valency of an element with electronic configuration 2, 8, 6?Read the answer and worked solution →Which Group-1 element has the LOWEST melting point and highest reactivity?Read the answer and worked solution →How does a Na⁺ ion compare in size to a neutral Na atom?Read the answer and worked solution →Why do noble gases generally show ZERO electron affinity?Read the answer and worked solution →Which property of an oxide changes from basic to acidic across period 3?Read the answer and worked solution →Which one of these does NOT belong to the halogen family?Read the answer and worked solution →Why is the first ionisation energy of nitrogen HIGHER than that of oxygen?Read the answer and worked solution →Which sequence is in INCREASING order of electronegativity?Read the answer and worked solution →An element X has atomic number 17. Which of the following statements is FALSE?Read the answer and worked solution →Which set of elements forms an isoelectronic series (same number of electrons)?Read the answer and worked solution →Among the following oxides, which is the MOST acidic?Read the answer and worked solution →Which property best distinguishes a metal from a non-metal in the periodic table?Read the answer and worked solution →In which pair does the SECOND member have a higher first ionisation energy than the FIRST?Read the answer and worked solution →Across period 3 from Na to Cl, which property shows a continuous increase?Read the answer and worked solution →Pop only the alkali metalsRead the answer and worked solution →

Worked practice questions

Judge these periodic table trends

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Questions
  1. Statement is true
    Yes
    Statement
    Atomic radius decreases across a period.
  2. Statement is true
    Yes
    Statement
    Ionisation energy decreases down a group.
  3. Statement is true
    No
    Statement
    Electronegativity increases down a group.
  4. Statement is true
    No
    Statement
    Metallic character increases across a period.
Instructions
Read each claim about how properties shift across and down the table, then tap true or false.

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The modern periodic law was given by whom?

  1. Henry Moseley
  2. Dmitri Mendeleev
  3. John Dalton
  4. Johann Dobereiner
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Correct answer: A. Henry Moseley

1. Mendeleev arranged elements by atomic mass and gave the older periodic law. 2. Henry Moseley in 1913 showed that atomic number, not mass, decides periodicity. 3. The modern periodic law states that properties are periodic functions of atomic number. 4. So the law is credited to Moseley. _Source: Selina Concise Chemistry ICSE Class 10, Ch 1 'Periodic Table' (aplustopper.com extract)_

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How many groups and periods are in the modern periodic table?

  1. 7 groups and 18 periods
  2. 18 groups and 7 periods
  3. 8 groups and 7 periods
  4. 7 groups and 8 periods
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Correct answer: B. 18 groups and 7 periods

1. The modern periodic table has vertical columns called groups. 2. It has horizontal rows called periods. 3. There are 18 groups and 7 periods in the modern table. 4. Hence the correct answer is 18 groups and 7 periods. _Source: Selina Concise Chemistry ICSE Class 10, Ch 1 'Periodic Table' (aplustopper.com extract)_

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