Phosphorus is the 15th element in the periodic table and has a symbol of P and atomic number of 15. It has an atomic weight of 30.97376 and a mass number of 31. Phosphorus has fifteen protons and sixteen neutrons in its nucleus, and fifteen electrons in three shells.

Phosphorus is a chemical element of the periodic table with chemical symbol P and atomic number 15 with an atomic weight of 30.9738 u and is classed as nonmetal and is part of group 15 (nitrogen group). Phosphorus is solid at room temperature.

atomic number: 15: atomic weight: 30.9738: melting point (white) 44.1 °C (111.4 °F) boiling point (white) 280 °C (536 °F) density (white) 1.82 gram/cm 3 at 20 °C (68 °F) oxidation states: −3, +3, +5: electron configuration: 1s 2 2s 2 2p 6 3s 2 3p 3

Atomic number (Z) 15: Group: group 15 (pnictogens) Period: period 3: Block p-block: Electron configuration 3s 2 3p 3: Electrons per shell: 2, 8, 5: Physical properties; Phase at STP: solid: Melting point: white: 317.3 K (44.15 °C, 111.5 °F) red: ∼860 K (∼590 °C, ∼1090 °F) Boiling point: white: 553.7 K (280.5 °C, 536.9 °F)

Element Phosphorus (P), Group 15, Atomic Number 15, p-block, Mass 30.974. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

Phosphorus is a chemical element with symbol P and atomic number 15. Classified as a nonmetal, Phosphorus is a solid at room temperature.

These phosphorus facts contain chemical and physical data along with general information and history. Phosphorus Periodic Table Cell. Basic Phosphorus Facts. Name: Phosphorus. Atomic Number: 15. Element Symbol: P. Group: 15. Period: 3. Block: p. Element Family: Nonmetal. Atomic Mass: 30.973 761 998 (5)

Symbol: P Atomic number: 15 Atomic mass: 30.973762 Group: Non-Metal CAS-number: Physical data Isotopes Other info

phosphorus, Nonmetallic chemical element, chemical symbol P, atomic number 15.

Phosphorus Basic Facts. Atomic Number: 15. Symbol: P. Atomic Weight: 30.973762. Discovery: Hennig Brand, 1669 (Germany) Electron Configuration: [Ne] 3s 2 3p 3. Word Origin: Greek: phosphoros: light-bearing, also, the ancient name given the planet Venus before sunrise.