Two stable isotopes of copper have the following masses and percent abundances in nature:
Cu-63; Isotopic mass: 62.93 amu; % abundance: 69.09
Cu-65; Isotopic mass: ? amu; % abundance: 30.91
If copper has an atomic mass of 63.55 g/mole, what is the isotopic mass of Cu-65?
OPTIONS
64.01 amu
64.53 amu
64.93 amu
65.03 amu
MAKE SURE TO REALLY EXPLAIN IT! HOW DID U DETERMINE THIS? WHAT STRATEGY DID U USE? STEP BY STEP I WANT TO KNOW EVERYTHING!!