Question

part b
the atomic number of fluorine is 9. what is the mass number of a fluorine atom with 8 neutrons?
express your answer as an integer.
view available hint(s)
mass number =
submit
part c
an atom has a mass number of 30 and 16 neutrons. what is the atomic number of this atom?
express your answer as an integer.
view available hint(s)

Explanation:

Part B

Step1: Recall mass number formula

Mass number ($A$) = atomic number ($Z$) + number of neutrons ($n$). Given $Z = 9$, $n = 8$.

Step2: Calculate mass number

$A = 9 + 8 = 17$

Step1: Recall mass number formula

Mass number ($A$) = atomic number ($Z$) + number of neutrons ($n$). Rearranged, $Z = A - n$. Given $A = 30$, $n = 16$.

Step2: Calculate atomic number

$Z = 30 - 16 = 14$

Answer:

17

Part C