Determination of the Relative Electron Density at the Be Nucleus in Different Chemical Combinations, Measured as Changes in the Electron-Capture Half-Life of ${}^{7}{Be}$

Differences in the decay constant of

{}^{7}{Be}

in various states of chemical combination were measured using the differential-ionization-chamber technique. The results are:

{λ (BeO) - λ {(Be F_{2})}_{amorph} = (1.130 \pm 0.058) \times 10^{- 3} λ (Be),} {λ (BeO) - λ ({Be}_{4} O {({CH}_{3} COO)}_{6}) = (- 0.724 \pm 0.057) \times 10^{- 3} λ (Be),} {λ (BeO) - λ (Be {Br}_{2}) = (1.472 \pm 0.063) \times 10^{- 3} λ (Be),} {λ ({Be}_{4} O {({CH}_{3} COO)}_{6}) - λ {(Be F_{2})}_{amorph} = (1.852 \pm 0.082) \times 10^{- 3} λ (Be),} {λ (BeO) - λ (Be {(C_{5} H_{5})}_{2}) = (0.795 \pm 0.074) \times 10^{- 3} λ (Be),} {λ (BeO) - λ ({Be}^{2 +} {({OH}_{2})}_{4}) = (- 0.374 \pm 0.077) \times 10^{- 3} λ (Be),} {λ (Be {(C_{5} H_{5})}_{2} - λ ({Be}^{2 +} {({OH}_{2})}_{4}) = (- 1.169 \pm 0.106) \times 10^{- 3} λ (Be) .}

The decay constant of

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Determination of the Relative Electron Density at the Be Nucleus in Different Chemical Combinations, Measured as Changes in the Electron-Capture Half-Life ofBe7