CBSE  /  Class 10  /  Science  /  Periodic Classification of Elements

  • 1. 
    What type of oxide would E&a-aluminium form?

  • EO
  • E
  • E
  • EO

  • 2. 
    Which of these belong to the same period?

  • A, B
  • B, C
  • C, A
  • A, B & C

  • 3. 
    Which of the following property will be common in group 1 elements?

  • Mass number
  • Number of protons in nucleus
  • Atomic number
  • Number of valence electrons

  • 4. 
    Which one of the following elements exhibit maximum number of valence electrons?

  • Na
  • Al
  • Si
  • P

  • 5. 
    Which of the following gives the correct increasing order of the atomic radii of O, F and N?

  • O, F, N
  • N, F, O
  • O, N, F
  • F, O, N

  • 6. 
    Element ‘A’ has electronic configuration 2, 7; ‘B’ has electronic configuration 2, 8, 5 and ‘C’ has electronic configuration 2, 8, 7. Which two elements will exhibit similar chemical properties?

  • A and C
  • A and B
  • B and C
  • None of these

  • 7. 
    Which of the following elements does not lose an electron easily?

  • Na
  • F
  • Mg
  • Al

  • 8. 
    Which of the following are the characteristics of isotopes of an element?

  • (i), (iii) and (iv)
  • (ii), (iii) and (iv)
  • (ii) and (iii)
  • (ii) and (iv)

  • 9. 
    An element-X has mass number 40 and contains 21 neutrons in its atom. To which group of the periodic table does it belong?

  • Group 1
  • Group 4
  • Group 2
  • Group 3

  • 10. 
    Which of the following properties does not match element of the halogen family?

  • They have seven electrons in their valence shell.
  • They are highly reactive.
  • They are metallic in nature.
  • They are diatomic in their molecular form.
Report Question
warning
Practice More On Periodic Classification of Elements
Quiz 1 Quiz 2 Quiz 3 Quiz 4 Quiz 5
access_time
  Time