Calculate the Atomic Mass of Gallium If Gallium Has Two

question 35

Multiple Choice

Calculate the atomic mass of gallium if gallium has two naturally occurring isotopes with the following masses and natural abundances:
Ga-69 68.9256 u 60.11%
Ga-71 70.9247 u 39.89%

• A) 69.72 u
• B) 69.93 u
• C) 70.00 u
• D) 69.80 u
• E) 70.68 u

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Definitions:

Action Potential

A temporary reversal in the electrical polarization of the membrane of a nerve cell or muscle cell, allowing for the transmission of signals.

Threshold

The minimum level of stimulus intensity required to activate a sensory system or produce a response in a physiological or psychological system.

Inhibitory Stimulation

A neural process that decreases the likelihood of a neuron firing, thereby reducing or preventing certain neural activities.

Neurotransmitters

Chemical substances in the nervous system that transmit signals from one neuron to another across synapses.