Silver Has Two Stable Isotopes with Masses of 106

question 83

Multiple Choice

Silver has two stable isotopes with masses of 106.90509 u and 108.9047 u.The atomic weight of silver is 107.868 u.What is the percent abundance of each isotope?

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

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Definitions:

IgG Antibodies

A type of antibody that is the most common and widely distributed in body fluids, playing a crucial role in immune response.

Memory Cells

A type of immune cell that remains in the body long term after an infection has been defeated, enabling a faster and stronger response upon re-exposure to the same pathogen.

IgM Antibodies

The first type of antibody the body makes when it fights a new infection, providing an initial line of defense against pathogens.

Cytotoxic T Cells

A type of immune cell that kills cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.