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An element having 17 protons and 18 neutron calculate number of electrons atomic number and Mass number. |
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Answer» Mass number= 17+ 18 =35. Q. The atom of an element X contains 17 protons, 17 electrons and 18 neutrons whereas the atom of an element Y contains 11 protons, 11 electrons and 12 neutrons. Givenno of electrons = 17 No of nuetrons = 18 no of protons = no of electrons So no of protons = 17 Atomic number = no of electrons = no of protons So atomic number = 17 Mass number = atomic no + no of nuetrons So Mass numb er= 17+ 18 =35 Element of nucleus : Protons:17 Neutron:18 So, =>Mass No. =17+18 = 35 And , =>No. of electrons =17. (as no. of electrons =no. of protons) And, =>Atomic No. = 17 =>Name of element = Cl(chlorine) Hope it helps u.... ✌ |
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