Gallium Has an Atomic Mass of 69

question 90

Multiple Choice

Gallium has an atomic mass of 69.723 u. The abundance of Ga-69 (68.926 u) is 60.11%. What is the atomic mass, in u, of the other isotope?

• A) 70.92 u
• B) 70.93 u
• C) 70.94 u
• D) 70.91 u
• E) 70.930 u

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Definitions:

Intimacy Equilibrium Theory

The theory that relationships are maintained through a balance of personal disclosures and closeness, adjusting the level of intimacy to maintain relational stability.

Back-Channel Communication

Verbal and non-verbal ways in which listeners let speakers know they are still listening.

Impression Management

The effort to control or influence the perceptions others have of us, often through the manipulation of information in social interactions.

Intimacy Equilibrium

The balance between the need for closeness and personal space in interpersonal relationships.