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ICSE Class 8 Chemistry Question 21 of 23

Atomic Structure — Question 5

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Question 5

Draw the structure of the following atoms showing the nucleus containing - protons, neutrons and the orbits with the respective electrons:

  1. Lithium [At. no. = 3, Mass no. = 7].

  2. Carbon [At. no. = 6, Mass no. = 12].

  3. Silicon [At. no. 14, Mass no. = 28].

  4. Sodium [At. no. = 11, Mass no. = 23].

  5. Isotopes of hydrogen [11H, 12H, 13H]

Answer
  1. Lithium [At. no. = 3, Mass no. = 7]
Atomic Structure of Lithium. Atomic Structure, Simplified Chemistry Dalal Solutions ICSE Class 8.
  1. Carbon [At. no. = 6, Mass no. = 12]
Atomic Structure of Carbon. Atomic Structure, Simplified Chemistry Dalal Solutions ICSE Class 8.
  1. Silicon [At. no. 14, Mass no. = 28]
Atomic Structure of Silicon. Atomic Structure, Simplified Chemistry Dalal Solutions ICSE Class 8.
  1. Sodium [At. no. = 11, Mass no. = 23]
Atomic Structure of Sodium. Atomic Structure, Simplified Chemistry Dalal Solutions ICSE Class 8.
  1. Isotopes of hydrogen [11H, 12H, 13H]
Draw the geometric atomic structure of the three isotopes of hydrogen. Atomic Structure, Simplified Chemistry Dalal Solutions ICSE Class 8