Question

he atomic number of fluorine is 9. How many electrons does an ion of fluorine have if it is represented by the symbol shown below? 19F1- A. 8 electrons B. 9 electrons C. 10 electrons D. 20 electrons

Answer 1

Answer:

it is D.

Explanation:

because im always right, and i also put C like the other guy said but it was wrong.. its D.

Answer 2

The atomic number of fluorine is 9.

Atomic number is the number of protons present in the element. The number of electrons and protons is same in a neutral element.

The given ion of fluorine is $^{19}F^{-}$. It represents a uninegative anion with a mass number of 19.

It is an anion with a charge of -1, this means that there is an additional electron in the ion. The number of electrons in this ion are 9 + 1 = 10 electrons

The correct answer will be C. 10 electrons