9 F 18.9984031636

Fluorine

DIATOMIC NONMETAL

Phase: Gas

Discovered: André-Marie Ampère

Block: P

Summary

Fluorine is a chemical element with symbol F and atomic number 9. It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. As the most electronegative element, it is extremely reactive:almost all other elements, including some noble gases, form compounds with fluorine.

Source: Wikipedia

Physical Properties

Atomic Mass 18.9984031636 u

Density 1.696 g/cm³

Melting Point 53.48 K

Boiling Point 85.03 K

Molar Heat N/A

Electron Affinity 328.1649 kJ/mol

Ionization Energies

1^st: 1681 kJ/mol

2^nd: 3374.2 kJ/mol

3^rd: 6050.4 kJ/mol

4^th: 8407.7 kJ/mol

5^th: 11022.7 kJ/mol

6^th: 15164.1 kJ/mol

7^th: 17868 kJ/mol

8^th: 92038.1 kJ/mol

9^th: 106434.3 kJ/mol