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Andhra Pradesh SSC (Class 10) Periodic Classification of Elements — practice questions

Explore 98 free Periodic Classification of Elements questions in Andhra Pradesh SSC (Class 10) Science and Technology. 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 1–30 of 98.

CLASS10 · Chemistry · Periodic Table Trends — Gap FillRead the answer and worked solution →CLASS10 · Chemistry · Periodic Classification — Group NamesRead the answer and worked solution →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 →

Worked practice questions

CLASS10 · Chemistry · Periodic Table Trends — Gap Fill

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Missing parts
  1. Answer
    decreases
    Choices
    1. decreases
    2. increases
    3. stays the same
    4. fluctuates
  2. Answer
    increases
    Choices
    1. decreases
    2. increases
    3. stays the same
    4. fluctuates
Complete the statement
Across a period, atomic radius {0}. Down a group, metallic character {1}.
Instructions
Fill the periodic trends.

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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
Instructions
Match each periodic-table term to its description.

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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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