Question
(c) Complete the table for the element fluorine PARTICLE & }(c) NUMBER OF PROTONS & NUMBER OF NEUTRONS & NUMBER OF ELECTRONS Fluorine atom & 9 & & 9 Fluoride atom & & 10 &
Answer
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Lucy
Expert · Tutor for 3 years
Answer
For a Fluorine atom: - Number of Protons = 9 - Number of Neutrons = 10 - Number of Electrons = 9For a Fluoride atom: - Number of Protons = 9 - Number of Neutrons = 10 - Number of Electrons = 10
Explanation
In this question, we can use some general facts about atoms to fill in the table:- The number of Protons in an atom of a given element: This is the same for all atoms of the same element, and defines the element's atomic number. For Fluorine, the atomic number, and hence the Proton count, is 9.- The number of Electrons in a neutral atom is equal to the number of Protons. So, a Fluorine atom will have 9 electrons as well.- The number of Neutrons in an atom can be derived from the atomic mass number and the atomic number (number of Protons). The atomic mass (nearest whole number) of Fluorine is approximately 19. The number of Neutrons will be this number, subtract the number of Protons. So, there are roughly (19 - 9) = 10 neutrons in both a Fluorine and a Fluoride atom.- A "Fluoride" atom, is actually a Fluorine atom that has gained an electron through chemical reaction to achieve a stable outer electron shell. Hence, a Fluoride atom will possess one more Electron than a neutral Fluorine atom, this means that it has (9 + 1) = 10 electrons. The number of Protons remains the same, because changing the number of protons would change the identity of the element to something other than Fluorine.This completes our table as followed:\begin{array}{|c|c|c|c|}\hline\ PARTICLE\ &\ \begin{array}{c}\ NUMBER\ OF\ \\PROTONS\end{array} & \begin{array}{c}\ NUMBER\ OF\ \\NEUTRONS\end{array} & \begin{array}{c}\ NUMBER\ OF\ \\ELECTRONS\end{array} \\\hline Fluorine atom & 9 & 10 & 9\\\hline Fluoride atom & 9 & 10 & 10\\\hline\end{array}