The atomic number 15 corresponds to:

*Phosphorus (P)*

Atomic Number: 15
Atomic Mass: 30.973762
Electronic Configuration: [Ne] 3s² 3p³

Some key properties of Phosphorus:

1. Symbol: P
2. Atomic Radius: 107 pm
3. Electronegativity: 2.19
4. Group: 15 (Nitrogen group)
5. Period: 3
6. Block: p-block

Phosphorus is an essential element for life, playing a crucial role in:

1. DNA and RNA structure
2. Cellular energy production (ATP)
3. Bone formation

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