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.
All atoms of chlorine (Cl) have 17 protons, but there are chlorine isotopes having 15 to 23 neutrons. Only two chlorine isotopes exist in significant amounts in nature, those with 18 neutrons (75.53% of all chlorine atoms found in nature), and those with 20 neutrons (24.47%).