1 When the ThinkVantage Fingerprint Software dialog box opens, go to Fingerprints Enroll or Edit Fingerprints. 2  Follow the steps in the User Enrollment wizard to successfully enroll your fingerprints. 3  Before fingerprints can be registered, youâll be asked to type in a password.
For example, the atomic weight of the element chlorine is 35.453, determined by averaging the atomic masses and relative abundances of its two main naturally occurring isotopes, which have atomic masses of about 35 and 37.
When we calculate the relative atomic mass of an element we have to take into account the proportions of each isotope present. In a naturally occurring sample of chlorine, we find that 75 per cent is chlorine-35 atoms and the other 25 per cent is chlorine-37 atoms.