1 To enable the integrated logon, go to Settings System Settings. 2  Click the Logon tab in the ThinkVantage Fingerprint Software Settings window. 3  Select the option and make sure the following are checked: 4  Allow to bypass logon using Windows password. 5  Allow user selfenroll in logon.
Thallium: properties of free atoms. Thallium atoms have 81 electrons and the shell structure is 2.8.18.32.18.3. The ground state electron configuration of ground state gaseous neutral thallium is [ Xe ]. 4f 14. 5d 10. 6s 2. 6p 1 and the term symbol is 2 P 1/2.hallium atoms have 81 electrons and the shell structure is 2.8.18.32.18.3.
In the presence of water, the poisonous thallium hydroxide (TlOH) is formed. Thallium dissolves slowly in hydrochloric acid and dilute sulfuric acid and dissolves rapidly in nitric acid. Thallium sulfate, which is odorless and colorless, was used as a rat poison and as an insecticide. This use has been discontinued in some countries, including the USA. Thallium sulfide is used in photocells because its electrical conductivity increases on exposure to infrared light. Thallium oxide is used to make glass that has a high index of refraction.