Atomic StructureHard

Question

A positron is emitted from 23Na11 . The ratio of the atomic mass and atomic number of the resulting nuclide is

Options

A.22/10
B.22/11
C.23/10
D.23/12

Solution

On position emission from nucleus, proton converts into neutron therefore atomic number decreases by one but atomic mass remains constant.

Hence (C) is correct.

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