There are four naturally occurring isotopes of
the element chromium. The relative abundance
of each is
50Cr 4.345% 49.946044 amu
52Cr 83.789% 51.940508 amu
53Cr 9.501% 52.940649 amu
54Cr 2.365% 53.93880 amu
Find the average atomic mass of chromium.

Question

There are four naturally occurring isotopes of
the element chromium. The relative abundance
of each is
50Cr 4.345% 49.946044 amu
52Cr 83.789% 51.940508 amu
53Cr 9.501% 52.940649 amu
54Cr 2.365% 53.93880 amu
Find the average atomic mass of chromium.

jiteshmeghwal9 · Answer

$$\sum \frac{(\text{Atomic mass of each element * percentage abundance})}{100}$$

jiteshmeghwal9 · Answer

Average atomic mass =$$\frac{50*4.345+52*83.789+53*9.501+54*2.365}{100}$$