Question

Below is the mass spectrum of bromobenzene and chlorobenzene. Relative Abundance 100 Br 80 60 40 20 0 0 25 50 75 100 125 150 175 m/z 100 Cl 80 Relative Abundance 60 40 20 0 10 20 30 40 50 60 70 80 90 100 110 m/z 16. Why is there an unusually tall (M+2) +• peak and a small (M+3) +• peak present? BROMINE HAS 2 ISOTOPES AND THEIR NATURAL ABUNDANCE IS ALMOST THE SAME (1:1) AND SO IN THE MASS SPECTRUM OF BROMOBENZENE THE M + (M+2) PEAK INTENSITY IS THE SAME CHLORINE HAS 2 ISOTOPES AND THEIR NATURAL ABUNDANCE IS 3:1 SO M+ M+2 PEAK HEIGH WILL BE 3:1 MEANING THE (M+2)+ PEAK IS SMALL

          Below is the mass spectrum of bromobenzene and chlorobenzene.
Relative Abundance
100
Br
80
60
40
20
0
0 25 50 75 100 125 150 175
m/z
100
Cl
80
Relative Abundance
60
40
20
0
10 20 30 40 50 60 70 80 90 100 110
m/z
16. Why is there an unusually tall (M+2) +• peak and a small (M+3) +• peak present?
BROMINE HAS 2 ISOTOPES AND THEIR NATURAL ABUNDANCE IS ALMOST THE SAME (1:1) AND SO IN THE MASS SPECTRUM OF BROMOBENZENE THE M + (M+2) PEAK INTENSITY IS THE SAME
CHLORINE HAS 2 ISOTOPES AND THEIR NATURAL ABUNDANCE IS 3:1 SO M+ M+2 PEAK HEIGH WILL BE 3:1 MEANING THE (M+2)+ PEAK IS SMALL

Below is the mass spectrum of bromobenzene and chlorobenzene.
Relative Abundance
100
Br
80
60
40
20
0
0 25 50 75 100 125 150 175
m/z
100
Cl
80
Relative Abundance
60
40
20
0
10 20 30 40 50 60 70 80 90 100 110
m/z
16. Why is there an unusually tall (M+2) +• peak and a small (M+3) +• peak present?
BROMINE HAS 2 ISOTOPES AND THEIR NATURAL ABUNDANCE IS ALMOST THE SAME (1:1) AND SO IN THE MASS SPECTRUM OF BROMOBENZENE THE M + (M+2) PEAK INTENSITY IS THE SAME
CHLORINE HAS 2 ISOTOPES AND THEIR NATURAL ABUNDANCE IS 3:1 SO M+ M+2 PEAK HEIGH WILL BE 3:1 MEANING THE (M+2)+ PEAK IS SMALL

Added by Christopher V.

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