how many neutrons would fluorine have? its atomic number is 9. its atomic mass is 19. 1 point\n4\n10\n23\n26\…
how many neutrons would fluorine have? its atomic number is 9. its atomic mass is 19. 1 point\n4\n10\n23\n26\n29\n81
Answer
Explanation:
Step1: Recall the relationship
The atomic mass is the sum of protons and neutrons, and the atomic number is equal to the number of protons. Let the number of neutrons be $n$, number of protons be $p$, and atomic mass be $A$. So $A=p + n$.
Step2: Identify the number of protons
Given the atomic number of fluorine is 9, so the number of protons $p = 9$.
Step3: Calculate the number of neutrons
We know $A = 19$ and $p=9$. Substitute into the formula $n=A - p$. Then $n=19 - 9=10$.
Answer:
10