Which family of elements has solid, liquid, and gaseous members at $25^{\circ} \text{C}$ and $1 \text{atm}$ pressure?

$ \textbf{(A)}\hspace{.05in}\text{alkali metals (Li-Cs)} \qquad\textbf{(B)}\hspace{.05in}\text{pnictogens (N-Bi)} \qquad$
$\textbf{(C)}\hspace{.05in}\text{chalcogens (O-Te)} \qquad\textbf{(D)}\hspace{.05in}\text{halogens (F-I)}\qquad$
1. **Identify the elements in each family and their states at $25^{\circ} \text{C}$ and $1 \text{atm}$:**
   - **Alkali metals (Li-Cs):** All alkali metals (Lithium, Sodium, Potassium, Rubidium, Cesium) are solids at $25^{\circ} \text{C}$ and $1 \text{atm}$.
   - **Pnictogens (N-Bi):** Nitrogen is a gas, Phosphorus is a solid, Arsenic is a solid, Antimony is a solid, and Bismuth is a solid at $25^{\circ} \text{C}$ and $1 \text{atm}$.
   - **Chalcogens (O-Te):** Oxygen is a gas, Sulfur is a solid, Selenium is a solid, Tellurium is a solid at $25^{\circ} \text{C}$ and $1 \text{atm}$.
   - **Halogens (F-I):** Fluorine and Chlorine are gases, Bromine is a liquid, and Iodine and Astatine are solids at $25^{\circ} \text{C}$ and $1 \text{atm}$.

2. **Determine which family has members in all three states (solid, liquid, and gas) at $25^{\circ} \text{C}$ and $1 \text{atm}$:**
   - **Alkali metals:** All members are solids.
   - **Pnictogens:** Nitrogen is a gas, but the rest are solids.
   - **Chalcogens:** Oxygen is a gas, but the rest are solids.
   - **Halogens:** Fluorine and Chlorine are gases, Bromine is a liquid, and Iodine and Astatine are solids.

3. **Conclusion:**
   - The halogens (Fluorine, Chlorine, Bromine, Iodine, and Astatine) include elements that are gases (Fluorine and Chlorine), a liquid (Bromine), and solids (Iodine and Astatine) at $25^{\circ} \text{C}$ and $1 \text{atm}$.

Thus, the family of elements that has solid, liquid, and gaseous members at $25^{\circ} \text{C}$ and $1 \text{atm}$ is the halogens.

The final answer is $\boxed{\text{D}}$