Bromine, with Atomic Mass 79

question 58

Multiple Choice

Bromine, with atomic mass 79.942 u, is composed of nearly equal amounts of two isotopes, one of which contains 79 nucleons per atom.The mass number of the other isotope is:

• A)78
• B)79
• C)80
• D)81
• E)82

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Definitions:

Thalamus

A part of the brain located above the brainstem that acts as a relay station, processing and transmitting sensory information to the cerebral cortex.

Meninges

The three membranes that enclose the brain and spinal cord, providing protection and supporting the central nervous system.

Spinal Cord

A long, thin, tubular structure made up of nervous tissue, which extends from the brainstem to the lower back, carrying nerve impulses to and from the brain.

Brain

The brain is the central organ of the human nervous system, located in the head, responsible for processing sensory information, controlling movement, and facilitating cognitive functions.