Is it DDNAya I think it's dna
Answer:
Explanation: the answer is A
The sum of the percentage abundance of these two isotopes of the new synthetic element should be equal to 100. If we let x be the percent abundance of the second isotope, we have the equation, 43 + x = 100The value of x = 57
Answer:
H
because Zinc is not shiny but it is a white solid
