&#x27;J&#x27; is the first letter without an element name. Maybe a new element will be discovered and given a &#x27;J&#x27; name before 2024. :)<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;List_of_elements" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;List_of_elements</a>