It is installed with a couple of know programs including TOSHIBA HDD/SSD Alert published by TOSHIBA Corporation, Alerta de HDD/SSD TOSHIBA from TOSHIBA Corporation and Alerta de HDD/SSD TOSHIBA by TOSHIBA Corporation. The assembly utilizes the .NET run-time framework (which is required to be installed on the PC). The file is digitally signed by TOSHIBA CORPORATION which was issued by the VeriSign certificate authority (CA).
Calcium's atomic weight of 40.078 rounds to a mass number of 40. Subtracting 20 from 40 yields a result of 20. This means an atom with 20 protons and 20 neutrons must be an atom of calcium. In some cases, calcium does not have 20 neutrons.
The mass of each atom is based on the atomic weight of each element listed on the periodic table of elements. For example, the mass of one atom of calcium is 40.078 grams per mole. For the three atoms of calcium contained in the formula Ca3(PO4)2, the total mass of calcium is 120.234 grams per mole.