Silver Has Two Stable Isotopes with Masses of 106

question 13

Multiple Choice

Silver has two stable isotopes with masses of 106.90509 amu and 108.9047 amu.The average molar mass of silver is 107.868 amu.What is the percent abundance of each isotope?

• A) 50.0% Ag-107 and 50.0% Ag-109
• B) 51.8% Ag-107 and 48.2% Ag-109
• C) 55.4% Ag-107 and 44.6% Ag-109
• D) 48.2% Ag-107 and 51.8% Ag-109
• E) 44.6% Ag-107 and 55.4% Ag-109

---

Definitions:

Strange Situation

A laboratory procedure for measuring attachment by evoking infants’ reactions to the stress of various adults’ comings and goings in an unfamiliar playroom.

Affectionate Tie

A deep emotional bond formed between individuals, characterized by feelings of care, love, and attachment.

Ainsworth

A psychologist known for her work in the development of attachment theory.

Patterned Exchange

Repeated, structured interactions or transactions between parties, characteristic of certain economic or social systems.