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Zigmanuir [339]
2 years ago
8

The atomic number of fluorine is 9. How many electrons does an ion of fluorine have if it is represented by the symbol shown bel

ow?
19F1-

A. 8 electrons
B. 9 electrons
C. 10 electrons
D. 20 electrons
Chemistry
2 answers:
Orlov [11]2 years ago
8 0

Answer:

b. 8 electrons

Explanation:

hope it's hepl

Irina-Kira [14]2 years ago
5 0
  • See charge on ion is -1 .

Hence it has taken 1 electron

Now first look at EC of Fluorine(F)

\\ \bull\sf\dashrightarrow 1s^22s^22p^5

  • Now one electron added .hence no of electrons is 10now

Look at the EC

\\ \bull\sf\dashrightarrow 1s^22s^22p^6

Or

\\ \bull\sf\dashrightarrow [He]

Option C is correct.

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Answer:

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Explanation:

Given data:

Mass in gram = ?

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Answer:

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A simple calorimetry problem

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