Question

An atom of an element has mass number 28u and its number is 14 how many neutrons does it has also name the element

Answer 1

14 and element name is silicon

Answer 2

hloo frnd and your answer is as follows....

atomic no. = 14
mass number = no. of neutrons + atomic no.
28 = no.of neutrons + 14
no. of neutrons = 14

and the element is silicon.

hope it helps u.....☺☺