Nickel (Ni) VS Chromium (Cr)
A definitive side-by-side comparison of two essential element profiles.
VS
Main Differences
Nickel (Ni) is an element in the transition metals category with an atomic number of 28. Chromium (Cr) is an element in the transition metals category with an atomic number of 24.
Nickel (Ni) is 1.2x denser than Chromium (Cr). However, Chromium (Cr) melts at a higher temperature than Nickel (Ni) (a difference of 452.0 Kelvin).
Where do the names come from?
Ni Nickel (Ni) Naming History
The name is the shortened for of the German 'kupfernickel' meaning either devil's copper or St. Nicholas's copper.
Cr Chromium (Cr) Naming History
The name Chromium is derived from the Greek ''chroma'', meaning colour.
Related Comparisons
Compare
Nickel (Ni)
Chromium (Cr)
Category
Transition Metals
Transition Metals
Atomic Number
28
24
Symbol
Ni
Cr
Atomic Mass
58.693 u
51.996 u
Group
10
6
Period
4
4
Block
d-block
d-block
Standard State (at 20°C)
solid
solid
Density
8.908 g/cm³
7.19 g/cm³
Melting Point (°C)
1455°C
1907°C
Melting Point (°F)
2651°F
3465°F
Melting Point (K)
1728 K
2180 K
Boiling Point (°C)
2913°C
2671°C
Boiling Point (°F)
5275°F
4840°F
Boiling Point (K)
3186 K
2944 K
Year Discovered:
1751
1797
CAS Number
7440-02-0
7440-47-3
Origin of Name:
The name is the shortened for of the German 'kupfernickel' meaning either devil's copper or St. Nicholas's copper.
The name is derived from the Greek ''chroma'', meaning colour.