The mass number of an isotope of uranium is 238, and its atomic number is 92. which symbol best represents this isotope of uranium?

Explanation:

Isotopes are atoms of same element which have same atomic number but different mass number.

General representation of an element is given as:  

where,

Z represents Atomic number

A represents Mass number

X represents the symbol of an element

General representation of an isotope of ursium with atomic number of 92 and mass umber of 238 and represented by the symbol U is:

2b2t

explanation:

2b2t