What are The electrically charged molecules that are involved in a nerve impulse are called?

The electrically charged molecules involved in a nerve impulse are called ions. Key ions include sodium (Na+), potassium (K+), calcium (Ca2+), and chloride (Cl-). During a nerve impulse, the movement of these ions across the neuron's membrane generates an action potential, allowing the signal to propagate along the nerve. This process is crucial for communication between neurons and the transmission of signals throughout the nervous system.