Question

A fluorine ion has 9 protons and a charge of –1. How many electrons are in an ion of fluorine?

Question 10 options:

A.8

B.1

C.9

D.10

Answer 1

its D because it is a negative charge, not a positive just took the test made 100
 

Answer 2

There are 10 electrons in an ion of fluorine.

Explanation:

Given:

The fluorine ion with 9 protons and a charge of -1.

To find:

The number of electrons in fluorine ion.

Solution

The atomic number of fluorine = 9

Atomic number = Number of protons

Number of proton in fluorine atom = 9

In a neutral atom of fluorine equal numbers of protons and electrons are there.

Number of electrons in fluorine atom = 9

Charge on fluorine atom =-1

Number of electrons in fluorine ion = 9 +1 = 10

There are 10 electrons in an ion of fluorine.

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