CBSE Class 9 Answered
Atomic no. of fluorine is 9 and mss no is 19.calculate the no. of electron ,proton and neutron in neutral atom and in the ion formed by it. Represent the ion and give its electronic configuration.
Asked by Parul | 30 Dec, 2015, 03:53: PM
Expert Answer
Number of Protons: 9
Number of Electrons: 9
Number of Neutrons: 10
The electronic configuration is: 2, 7
Fluorine will require 1 more electron to complete its octet. (To achieve octet state).
It gains an electron from another atom forming a fluoride ion, F-.
Answered by Hanisha Vyas | 30 Dec, 2015, 07:04: PM
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