2. Atomic Weight: 22.99

3. Melting Point: 97.6 °C (207.7 °F)

4. Boiling Point: 892 °C (1638 °F)

Additionally, here are four more characteristics of sodium:

- Symbol: Na

- Electron Configuration: 1s2 2s2 2p6 3s1

- Oxidation States: +1

- Density: 0.97 g/cm³

Sodium is a soft, silvery-white metal that is highly reactive. It is the sixth most abundant element in the Earth's crust and is found in many minerals, including halite (NaCl) and soda ash (Na2CO3). Sodium is essential for life and is involved in many important biological processes, such as nerve transmission and muscle contraction.