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An ion X2- contains 10 electrons and 8 neutrons. What are the atomic number and mass number of elements X?
CBSE Class 9
CBSE Class 9 Science
prasanna
June 30, 2016, 4:26am
1
Atomic no. = No. of Protons
So atomic no. of the element = 8
Mass no. of the element = 8 + 8 = 16