Information valid for P-31 unless otherwise noted
[ATOM]

Phosphorous

 [ATOM]

Basic Information


Symbol: P
Atomic Number: 15
Mass: 30.9738
Melting Point: 44.1
Boiling Point: 280
Number of Protons/Electrons: 15
Number of Neutrons: 16
Classification: Non-metal
Crystal Structure: Monoclinic
Density: 1.82
Color: white

Atomic Structure

[Bohr Model of Phosphorous]  
Number of Energy Levels: 3

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 5

Isotopes

Isotope Half Life
P-31Stable
P-3214.28 days
P-3324.3 days

Facts


Date of Discovery: 1669
Discoverer: Hennig Brand
Name Origin: From the Greek words phôs (light) and phoros (bearer)
Uses: fertilizers, detergents
Obtained From: phosphate rock

Related Links

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