Chromium (Cr) VS Manganese (Mn)
A definitive side-by-side comparison of two essential element profiles.
VS
Main Differences
Chromium (Cr) is an element in the transition metals category with an atomic number of 24. Manganese (Mn) is an element in the transition metals category with an atomic number of 25.
Manganese (Mn) is 1.0x denser than Chromium (Cr). Furthermore, Chromium (Cr) melts at a significantly higher temperature than Manganese (Mn) (a difference of 661.0 Kelvin).
Where do the names come from?
Cr Chromium (Cr) Naming History
The name Chromium is derived from the Greek ''chroma'', meaning colour.
Mn Manganese (Mn) Naming History
The name Manganese comes from either the Latin for magnet (magnes) or from black magnesium oxide (magnesia nigra)
Related Comparisons
Compare
Chromium (Cr)
Manganese (Mn)
Category
Transition Metals
Transition Metals
Atomic Number
24
25
Symbol
Cr
Mn
Atomic Mass
51.996 u
54.938 u
Group
6
7
Period
4
4
Block
d-block
d-block
Standard State (at 20°C)
solid
solid
Density
7.19 g/cm³
7.21 g/cm³
Melting Point (°C)
1907°C
1246°C
Melting Point (°F)
3465°F
2275°F
Melting Point (K)
2180 K
1519 K
Boiling Point (°C)
2671°C
2060°C
Boiling Point (°F)
4840°F
3740°F
Boiling Point (K)
2944 K
2334 K
Year Discovered:
1797
1774
CAS Number
7440-47-3
7439-96-5
Origin of Name:
The name is derived from the Greek ''chroma'', meaning colour.
The name Manganese comes from either the Latin for magnet (magnes) or from black magnesium oxide (magnesia nigra)