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Question

Three different atoms of hydrogen are represented as H11;H12;H13. Draw atomic structure of H13.


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Solution

  • Atom is represented with its symbol having an atomic number in subscript and mass number in superscript. Symbolic representation is mentioned below :
  • The atomic number (Z) of an element is equal to the total number of protons present in the nucleus of the atom.
  • Atomicnumber=numberofprotons=numberofelectrons(forelectricallyneutralatom)
  • The atom H13will have one proton and one electron.
  • The mass number of elements is equal to the sum of the total number of protons and neutrons present in the nucleus of the atom.
  • Massnumber=numberofprotons+numberofneutrons
  • Hence, H13will have 2neutrons. The atomic structure is made by electrons

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