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Understanding Electron Configurations of Ions: The Noble Gas Connectio
Chapter 9, Problem 94P(choose chapter or problem)
Write the electron configuration for each ion. What do all of the electron configurations have in common?
(a) \(F^{-}\)
(b) \(p^{3-}\)
(c) \(L i^{+}\)
(d) \(A l^{3+}\)
Questions & Answers
QUESTION:
Write the electron configuration for each ion. What do all of the electron configurations have in common?
(a) \(F^{-}\)
(b) \(p^{3-}\)
(c) \(L i^{+}\)
(d) \(A l^{3+}\)
ANSWER:Step 1 of 2
We'll create electron configurations for various ions and identify their shared characteristics. Let's begin by understanding the fundamental concept of electron configuration. The organization of electrons within an atom or ion is referred to as its electron configuration. Electrons are distributed among shells and subshells based on energy levels.
a) \(F^{-}\)
The atomic number of F = 9, i.e., the number of electrons = 9
Its electronic configuration \(=1 s^{2} 2 s^{2} 2 p^{5} \text { or }[\mathrm{He}] 2 s^{2} 2 p^{5}\)
Now, the number of electrons in \(F^{-}=9+1=10\)
\(\mathrm{F}+\mathrm{e}^{-} \rightarrow \mathrm{F}^{-}\)
Thus, electronic configuration of \(F^{-}=1 s^{2} 2 s^{2} 2 p^{6} \text { or }[\mathrm{Ne}]\)
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Understanding Electron Configurations of Ions: The Noble Gas Connectio
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Unravel the electron configurations of diverse ions and discern their noble gas resemblances. Understand how atoms and ions strive for full outer electron shells for ultimate stability.