Level scheme antimony

Antimony-116, level scheme, 333f Antimony-133, energy levels, 72f,73t Astatine, odd mass, 259-261 Astatine nuclei, intruder states, 258-263... 

For the related compounds, phenothiazine and phenoxazine, the reduced form is stable under ambient conditions and oxidation occurs in two one-electron steps. A comparison between the redox behaviour of the two compounds is best made in an antimony trichloride medium where both the radical-cation and the dication levels are stable (Scheme 6.9) [225]. In perchloric acid, phenothiazine shows reversible... 

From casework statistics the unique particles (those containing the combination lead, antimony and barium, and those containing antimony and barium) occur in the ratio 7 3, respectively. Approximate percentages for indicative particles are lead-only 55% lead, antimony 20% lead, barium 8% antimony-only 7% barium, calcium, silicon 5% barium-only 5%. Table 19.3 gives an indication of the levels of the primary elements in each particle type. Table 19.4 gives an indication of the levels of accompanying elements in each particle type and is the basis for note b in Table 19.5, Particle Classification Scheme. 

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