"One gram atom of silver" refers to the quantity of silver equal to its atomic mass, which is approximately 107.87 grams per mole. The term "gram atom" is an older unit of measurement that corresponds to the molar quantity of a substance.
In the case of silver, one gram atom of silver is equivalent to 107.87 grams of silver. This quantity represents the molar mass of silver, which is calculated based on the average atomic mass of silver's isotopes. It signifies the amount of silver atoms present in a sample that weighs 107.87 grams.
The concept of gram atoms is not commonly used in modern scientific literature, as the International System of Units (SI) introduced the mole (mol) as the standard unit for representing the amount of a substance. However, the term "gram atom" may still be encountered in older texts or historical contexts.