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Is this answer 80? If not, what is it? I β- decay into 203Tl?
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- pisgahchemistLv 76 years ago
____ --> -1e0 + 81Sn203
The isotope which goes in the blank is 80Hg203. When an isotope undergoes beta(-) decay a neutron changes into a proton and emits an electron, a beta particle (and an antineutrino). The atomic number increases by 1 and the mass number stays the same.
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