Q. \( \)lewis structure for \( \text{Na} \).\(\ \)
Answer
Goal: Draw the Lewis structure for \( \text{Na} \) (sodium).
Valence electrons: Sodium has electron configuration \(3s^1\), so it has \(1\) valence electron.
Lewis symbol:
\[
\text{Na}\,\cdot
\]
That single dot represents the one valence electron.
Common ionic form: Sodium often forms \( \text{Na}^+ \) by losing that electron, giving:
\[
\text{Na}^+
\]
(No dots because the \(3s\) electron is lost.)
Detailed Explanation
To draw the Lewis structure for sodium nitride, \(\text{Na}\,^{-}\), you first need to understand what “\(\text{Na}\)” is and what charge is implied.
Important clarification: If the species is written as \(\text{Na}\) only, the Lewis structure is different than if it is written as \(\text{Na}^{-}\) (a sodium anion). Your prompt says “\(\text{na}\)” but the usual Lewis-structure question for “na” is commonly actually for \(\text{Na}\) or \(\text{Na}^{+}\). I will provide the Lewis structures for the most common possibilities:
Below are all three cases.
1) Lewis structure for neutral sodium atom, \(\text{Na}\)
Step 1: Find valence electrons.
Sodium (group 1) has \(1\) valence electron.
Step 2: Draw the symbol and place the valence electron as a dot.
Neutral \(\text{Na}\) has no overall charge.
Result:
\(\text{Na}\) with one dot (one valence electron):
\(\bullet\text{Na}\) (or \(\text{Na}\) with one dot around it)
2) Lewis structure for sodium ion, \(\text{Na}^{+}\)
Step 1: Determine electrons after ion formation.
Sodium forms a \(+1\) ion by losing its one valence electron.
So the ion has \(0\) valence electrons.
Step 2: Draw the symbol with the charge.
Since there are no valence electrons, you draw only the ion with brackets and the charge.
Result:
\(\text{Na}^{+}\) in Lewis form: \([\text{Na}]^{+}\) with no dots.
3) Lewis structure for sodium anion (rare/charge-mismatched case), \(\text{Na}^{-}\)
Step 1: Count valence electrons for \(\text{Na}^{-}\).
Neutral \(\text{Na}\) has \(1\) valence electron.
If it becomes \(\text{Na}^{-}\), it gains one electron.
So it would have \(2\) valence electrons.
Step 2: Place \(2\) dots on the symbol.
The ion would be \(-1\) overall, so you show the charge.
Result:
\([\text{Na}]^{-}\) with two valence electrons as dots.
Final answer (most likely intended): If your question is the common Lewis structure for sodium ions in ionic compounds, the answer is:
\([\text{Na}]^{+}\) with no valence electrons (no dots).
General Chemistry FAQs
What is the Lewis structure for sodium, \( \text{Na} \)?
Why does sodium form \( \text{Na}^+ \) and what does its Lewis symbol look like?
How many valence electrons are in neutral sodium?
How many valence electrons does \( \text{Na}^+ \) have?
What is the Lewis electron-dot configuration for sodium chloride, \( \text{NaCl} \)?
Is a shared-bond Lewis structure ever correct for \( \text{Na} \) with a nonmetal?
Study Na, then check your work.
Analytical, General, Biochemistry, etc.