Question

“If each element can be identified by its ______________, then the ____________ of an unknown star can be determined."

Answer 1

Ello user

nucleus then age of a star can be determined.

Hope this helps

Answer 2

$\huge\underline\mathfrak\blue{Answer}$

“If each element can be identified by its Nucleus, then the age of an unknown star can be determined."

hope it helps :))