Can any body help me to get an idea about Z12 and Z3 excitons.
thanks in advance,
Gomathi
... 25 to 44, 21.0% from 45 to 64, and 13.5% who are 65 years of age or older. The median age is 35 years. For every 100 females there are 91.9 males. For every 100 ...