Question

Two atoms A and B have the following nuclear composition: A - 17 protons ,18 neutrons ,17 electrons .. B. 17 protons,20 neutrons,17 electrons. a).what are the mass no. and atomic no.of A and B. b). what is the relation b/w the two chemical species. c). which element or element do they present.

Answer 1

1) mass no of A is 35
  atomic no of A is 17
   mass no of B is 37
   atomic no of B is 17

2) relation:- they both are isotopes

3) chlorine


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Answer 2

Answer:

1. mass no.is 35 and atomic no.is 17
2. they both are isotopes
3. the elements they represent are Cl35 and Cl37 ..