F - Fluorine

The toxic gas, fluorine, is the most reactive element. It was discovered by Karl Scheele in 1771 but not isolated until 1886 when Henri Moissan electrolysed potassium fluoride with some very sophisitcated and expensive equipment. 

Atomic number - 9 Density g/mL 0 .0001696
Atomic weight u 18 .998403 Melting point K 53 .48
Bonding radius A 0 .72 Boiling point K 84 .95
Atomic radius A 0 .57 Heat of vaporization kJ/mol 3 .2698
Ionization Potential V 17 .422 Heat of fusion kJ/mol 0 .2552
Electronegativity - 3 .98 Specific heat J/gK 0 .82
The oxide is a strong acid.
Crystal are cubic.

Electron config. : 1s2 2s2 2p5


Isotopes of F: Click mass number for decay process, product for element page.


014

p,3.200 MeV
O-13
14.036071
015
1.0 MeV
p,1.480 MeV
O-14
15.018014
016
40KEV
p,10.539 MeV
O-15
16.011465
017
64.49 sec
EC,2.761 MeV
O-17
17.002095
018
109.77 min
EC,1.656 MeV
O-18
18.000937
019 100%

Stable

18.998403
020
11.00 sec
B-,7.025 MeV
Ne-20
19.999981
021
4.158 sec
B-,5.684 MeV
Ne-21
20.999948
022
4.23 sec
B-,10.818 MeV
Ne-22
22.002999
023
2.23 sec
B-,8.480 MeV
Ne-23
23.003574
024
0.34 sec
B-,13.490 MeV
Ne-24
24.008094
025

B-/B-n,2.470
Ne-25/Ne-24
25.012098
MASS abund.
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass