Pd
Palladium · element 46
Transition Metal · Solid at room temperature
Palladium is a chemical element with symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1803 by William Hyde Wollaston. He named it after the asteroid Pallas, which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas.
Key facts
Atomic mass
106.421 u
how heavy one atom is
Phase (room temp.)
Solid
Density
12.023 g/cm³
how tightly packed it is
Melting point
1828.05 K (1555 °C)
when solid turns to liquid
Boiling point
3236 K (2963 °C)
when liquid turns to gas
Period
5
its row in the periodic table
Group
10
its column in the periodic table
Block
D-block
the neighbourhood it lives in
Electronegativity
2.2
how strongly it pulls electrons
Electron configuration
[Kr] 4d10
where its electrons live
Shells
2 · 8 · 18 · 18
electrons in each layer, inside to out
Discovered by
William Hyde Wollaston
who found it
Appearance
silvery white
what it looks like
Source: Wikipedia