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Question

In the diagram below   it depicts the structure of atom, where we are able to see orbits and electrons. How many neutrons and electrons are present in the nucleus?


  1. 19 protons and 20 neutrons

  2. 20 Protons and 19 Protons

  3. 19 Neutrons and 20 Protons

  4. 20Protons and 20 Neutrons


Solution

The correct option is D

20Protons and 20 Neutrons


 The atomic structure give in the question is Calcium element the electronic configuration is 2,8,8,2.So it has 20 protons and neutrons in its nucleus.

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