What type of ions are present in the axoplasm of a resting neuron?

The outer surface of the axonal membrane possesses a positive charge while its inner surface becomes negatively charged and therefore is polarised The sodium-potassium pump transports 3 Na⁺ ions outwards for 2 K⁺ ions into the cell. The resting potential of the plasma membrane of a neuron is the electrical potential difference across the resting plasma membrane when the membrane is in a polarised state. When a stimulus is applied at a site on the polarised membrane, the membrane at the site A becomes freely permeable to sodium ions (Na⁺), leading to an influx of Na⁺ and a reversal of the polarity at that site.The action potential of the plasma membrane of a neuron is the electrical potential difference across the plasma membrane.