| Property |
Column heading |
Notes |
| name |
 |
The international convention is used, eg
sulfur |
| symbol |
 |
|
| atomic number |
 |
Also called proton number. |
| relative atomic mass |
 |
|
| year of discovery |
 |
A dash means that the discovery date is uncertain but
that the element was known in Roman times. |
| density |
 |
|
| melting point |
 |
|
| boiling point |
 |
|
| enthalpy of fusion |
 |
Standard molar enthalpy change of fusion (melting). |
| enthalpy of vaporisation |
 |
Standard molar enthalpy change of vaporisation
(boiling) at the boiling point. |
| molar entropy |
 |
Standard molar entropy. |
| enthalpy of atomisation |
 |
Standard molar enthalpy change of atomisation per
mole of atoms formed . |
| van der Waals radius |
 |
|
| covalent radius |
 |
|
| metallic radius |
 |
|
| ionic radius 1 |
 |
The ionic radius of the ion formed by the element in
ON(1). |
| ionic radius 2 |
 |
The ionic radius of the ion formed by the element in
ON(2). |
| ionic radius 3 |
 |
The ionic radius of the ion formed by the element in
ON(3). |
| oxidation state 1 |
 |
The principal oxidation state, ie the most
stable oxidation state. Ox is sometimes seen as an alternative to ON. |
| oxidation state 2 |
 |
A less stable oxidation state. Ox is sometimes seen
as an alternative to ON. |
| oxidation state 3 |
 |
A less stable oxidation state. Ox is sometimes seen
as an alternative to ON. |
| electron affinity 1 |
 |
|
| electron affinity 2 |
 |
|
| Pauling electronegativity |
 |
|
1st ionisation energy
(also 2..14) |
 |
|
