Which of the following equations represents the first ionisation energy of fluorine?
A) F(g) → F(g) + e⁻
B) F(g) → F⁻(g) + e⁻
C) F(g) → F⁺(g) + e⁻
D) rac{1}{2}F(g) → F⁺(g) + e⁻ - Scottish Highers Chemistry - Question 2 - 2015
Question 2
Which of the following equations represents the first ionisation energy of fluorine?
A) F(g) → F(g) + e⁻
B) F(g) → F⁻(g) + e⁻
C) F(g) → F⁺(g) + e⁻
D) rac{1}{2}F... show full transcript
Worked Solution & Example Answer:Which of the following equations represents the first ionisation energy of fluorine?
A) F(g) → F(g) + e⁻
B) F(g) → F⁻(g) + e⁻
C) F(g) → F⁺(g) + e⁻
D) rac{1}{2}F(g) → F⁺(g) + e⁻ - Scottish Highers Chemistry - Question 2 - 2015
Step 1
Identify the definition of first ionisation energy
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The first ionisation energy is defined as the amount of energy required to remove one mole of electrons from one mole of gaseous atoms or ions.
Step 2
Analyze each equation
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
From the provided options, we need to determine which equation accurately represents this definition.
A) indicates that an atom remains unchanged while also producing an electron, which is incorrect.
B) suggests that an electron is added, which symbolizes the gaining of an electron, not removal, hence incorrect.
C) correctly illustrates the removal of an electron, resulting in a positively charged ion: F(g)→F+(g)+e−.
D) describes a half-reaction, which is not applicable to the ionisation process in this context.
Step 3
Select the correct answer
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Based on the analysis, the correct equation that represents the first ionisation energy of fluorine is:
C) F(g) → F⁺(g) + e⁻.
Join the Scottish Highers students using SimpleStudy...
