When a neuron is an resting state, $i e$, not conducting any impulse, the axonal membrane is
When a neuron is an resting state, $i e$, not conducting any impulse, the axonal membrane is
equally permeable to both $\mathrm{Na}^{+}$and $\mathrm{K}^{+}$ions
impermeable to both $\mathrm{Na}^{+}$and $\mathrm{K}^{+}$ions
comparatively more permeable to $\mathrm{K}^{+}$ions and nearly impermeable to $\mathrm{Na}^{+}$ions
comparatively more permeable to $\mathrm{Na}^{+}$ions and nearly impermeable to $\mathrm{K}^{+}$ions
Solution
Neurons are excitable cells because their membrane are in a polarised state. Different types of selectively permeable channels are present on the neural membrane. When a neuron is not conducting any impulse, ie, resting, the axonal membrane is comparatively more permeable to potassium ion $\left(\mathrm{K}^{+}\right)$and nearly impermeable to sodium ion $\left(\mathrm{Na}^{+}\right)$.