how does it's atomic volume compared with (a) rubidium (b) barium
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b) Barium is the correct answer.
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From various manufacturers and distributors 48 fertilizer samples were collected and analyzed for contents of barium, rubidium and strontium by atomic absorption spectrophotometry.
The investigated elements are almost always detectable in appreciable amounts in straight and compound fertilizers originated from natural rocks and salt deposits; whereas synthetic nitrogen fertilizers contain in every case low amounts of rubidium, no barium and appreciable quantities of strontium only in some cases.
The investigated elements are almost always detectable in appreciable amounts in straight and compound fertilizers originated from natural rocks and salt deposits; whereas synthetic nitrogen fertilizers contain in every case low amounts of rubidium, no barium and appreciable quantities of strontium only in some cases.
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