Linked List vs Array

Array: Arrays store elements in contiguous memory locations, resulting in easily calculable addresses for the elements stored and this allows faster access to an element at a specific index.

Data storage scheme of an array

Linked List: Linked lists are less rigid in their storage structure and elements are usually not stored in contiguous locations, hence they need to be stored with additional tags giving a reference to the next element. 

Linked-List representation

Major differences between array and linked-list are listed below: 

Array vs Linked List