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← ScienceWhich consequence results when strontium-90 undergoes beta minus decay in groundwater near a concrete structure?
A)Increased corrosion of reinforcing steel✓
B)Decreased alkalinity near the surface
C)Accelerated sulfate attack reactions
D)Elevated silica polymerization rates
💡 Explanation
Beta minus decay emits an electron and antineutrino, transforming a neutron into a proton in the strontium-90 nucleus; this results in yttrium-90 formation. Therefore, elevated hydroxide ion concentration causes increased rebar chloride mobility because of induced electrochemical reactions, rather than affecting alkalinity or polymerization.
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