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9th Class Science Structure of the Atom Question Bank 9th CBSE Science Structure of the Atom

  • question_answer
                                            An element 'X' contains 6 electrons in 'M' shell as valence electrons: (a) What is the atomic number of 'X'? (b) Identify whether 'X' is a metal or non-metal.

    Answer:

                      (a) Atomic number = Number of protons or electrons Atomic number = 16   (b) 'X' is a non-metal.


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