Question

Use the periodic table from the lesson to answer the following question. The atomic mass of F is ___. 9 10 19 55

Answer 1

18.9 but round it and you get 19

Answer 2

What is the atomic mass of the element F?

A. 9

B. 10

C. 19

D. 55

Answer

In this case if given those choices your answer would be (C. 19).

However in more complicated Chemistry rules you would learn that the periodic table only showcases 1 of the many possible masses of the element.

Hope this help! :D