Phosphorus ( P )

Material Information

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Atomic Properties

Atomic number	15
Atomic radius - Goldschmidt ( nm )	0.109
Atomic weight ( amu )	30.97
Electronic structure	Ne 3s2 p3
Ionization potential	No.	eV
	1	10.49
	2	19.72
	3	30.18
	4	51.37
	5	65.02
	6	220.43
Natural isotope distribution	Mass No.	%
	31	100
Thermal neutron absorption cross-section ( Barns )	0.19
Valences shown	±3, 4, 5

Physical Properties

Boiling point ( C )	280 (White allotrope)
Density @20C ( g cm-3 )	1.82
Melting point ( C )	44.1 (White allotrope)

All information and technical data are given as a guide only. Although every effort has been made to ensure that the information is correct, no warranty is given as to its completeness or accuracy.

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Buy Phosphorus on-line

We stock and supply the following standard forms:

Film

Choose a form to search our on-line catalog     " Select All Film