Fluorine-18 (918F{}^{18}_{9}\text{F}918F) is a positron-emitting radioisotope widely used as a radiacer in Positron Emission Tomography (PET) scans. During this decay, a proton within the fluorine nucleus converts into a neutron, emitting a positron and an electron neutrino, as shown by the following nuclear equation:
11p⟶01n++10e+νe {}^{1}_{1}\text{p} \longrightarrow {}^{1}_{0}\text{n} + {}^{0}_{+1}\text{e} + \nu_{\text{e}} 11p⟶01n++10e+νeDescribe how this positron emission process affects both the proton (atomic) number and the mass (nucleon) number of the parent nucleus.