Aluminium (Al) VS Gallium (Ga)
A definitive side-by-side comparison of two essential element profiles.
VS
Main Differences
Aluminium (Al) is an element in the post-transition metals category with an atomic number of 13. Gallium (Ga) is an element in the post-transition metals category with an atomic number of 31.
Gallium (Ga) is 2.2x denser than Aluminium (Al). Furthermore, Aluminium (Al) melts at a significantly higher temperature than Gallium (Ga) (a difference of 630.6 Kelvin).
Where do the names come from?
Al Aluminium (Al) Naming History
The name Aluminium is derived from the Latin name for alum, 'alumen' meaning bitter salt.
Ga Gallium (Ga) Naming History
The name Gallium is derived from the Latin name for France, ''Gallia''
Related Comparisons
Compare
Aluminium (Al)
Gallium (Ga)
Category
Post-transition Metals
Post-transition Metals
Atomic Number
13
31
Symbol
Al
Ga
Atomic Mass
26.982 u
69.723 u
Group
13
13
Period
3
4
Block
p-block
p-block
Standard State (at 20°C)
solid
solid
Density
2.7 g/cm³
5.91 g/cm³
Melting Point (°C)
660.323°C
29.7646°C
Melting Point (°F)
1220.581°F
85.5763°F
Melting Point (K)
933.47 K
302.91 K
Boiling Point (°C)
2519°C
2229°C
Boiling Point (°F)
4566°F
4044°F
Boiling Point (K)
2792 K
2673 K
Year Discovered:
1825
1875
CAS Number
7429-90-5
7440-55-3
Origin of Name:
The name is derived from the Latin name for alum, 'alumen' meaning bitter salt.
The name is derived from the Latin name for France, ''Gallia''