what was the phosphorus properties?
Answers
Answer:
Phosphorus is a chemical element with the symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth. It has a concentration in the Earth's crust of about one gram per kilogram (compare copper at about 0.06 grams). In minerals, phosphorus generally occurs as phosphate.
Explanation:
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Answer:
Atomic number :- 15
Atomic mass :- 30,9738 g.mol -1
Oxidation states ± 3, 4, 5
Electronegativity according to Pauling
2,1
Density
1,82 g/ml at 20°C
Melting point
44,2 °C
Boiling point
280 °C
Vanderwaals radius
1,04 Å
Ionic radius
0,34 Å
Atomic radius
1,28 Å
Electronic shell
[Ne]3s23p3
Energy of first ionisation
10,118 eV
Energy of second ionisation 19,725 eV
Energy of third ionisation 29,141 eV
Discovered by
Hennig Brandt in 1669
Explanation:
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