an element x exists as two isoptopes -144x and 146x and weigh 143.95 amu and 145.95 amu, respectively. if the atomic wei
Posted: Tue Dec 07, 2021 9:57 pm
an element x exists as two isoptopes -144x and 146x and weigh 143.95 amu and 145.95 amu, respectively. if the atomic weight if x us 145.23 amu, determine the percent abundabce of heavier isotope