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.
So, when the mass of chlorine is measured using an instrument called a mass spectrometer the result is a mass of 35.5. The atomic weight, or as it is properly called, the RELATIVE atomic mass, is a weighted average of the masses of all the isotopes of chlorine. Relative Atomic Mass = (75/100 x 35) + (25/100 x 37) = 35.5 Isotopes of any element behave the same chemically because neutrons do not have any charge.