Abundances of a number of elements have been determined in six Be-deficient F dwarfs and in a comparison group of 13 normal F5-G0 dwarfs. Model atmosphere abundance analyses were done for 28 lines of seven elements: Li, Na, Mg, Si, Ca, Sc, and Fe. By analogy with the Am stars and the Fm stars, excesses of Na and Si and deficiencies of Mg, Ca, and Sc might be expected if diffusion processes are responsible for the light element depletion. No difference was found in the distribution of any of these element abundances between the Be-deficient and the Be-normal stars. All of the Be-deficient stars were found to be very Li deficient. Transport of Li and Be by extra mixing could deplete the surface content of the light elements while not affecting the abundances of the other elements.
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Boesgaard et al. (1986) studied this question.