hello experts i didnt understand these points plz explain in easy words
 

At the resting state of a neuron:

• Axonal membrane is more permeable to K ⁺ and nearly impermeable to Na ⁺ .

• It is impermeable to negatively charged proteins present inside the axoplasm. Thus, it does not let them go out.

• As a result, the axoplasm has more concentration of K ⁺ and negatively charged proteins, and less concentration of Na ⁺ . This creates a concentration gradient.

You first need to understand the meaning of permeable and impermeable. Permeable means the passage of substance across the membrane is permitted/allowed. Impermeable means the movement of substance across the membrane is not permitted. 

So, at the resting state of a neuron:

• Axonal membrane is more permeable to K ⁺ means K⁺ can cross the cell membrane and come in neuron and nearly impermeable to Na ⁺  means Na⁺ can not cross cell membrane to come inside the neuron. 

• It is impermeable to negatively charged proteins present inside the axoplasm means these proteins can not cross the membrane and go out. Thus, it does not let them go out.

• As a result, the axoplasm has more concentration of K ⁺ and negatively charged proteins, and less concentration of Na ⁺ . This creates a concentration gradient means there is more positive charge present on the outside of the membrane of neuron as compare to inside.