Antimony

Latin nameStibium
English nameAntimony
chemical symbolSb
atomic number51
relative atomic mass121,75
period5
groupV.A
classificationmetalloids
discovery yearN/A
melting point [°C]630,74
boiling point [°C]1587
density [g cm-3]6,684
density at melting point [g cm-3]6,53
electronegativity [Pauling]2,05
oxidation states-III, III, IV, V
electron configuration[Kr]4d10 5s2 5p3
atomic radius [pm]133
covalent radius [pm]138
specific heat [J g-1K-1]0,21
heat of fusion [kJ mol-1]19,87
thermal conductivity [W m-1 K-1]24
el. conductivity [S m-1]2,5.106
1. ionizing potential [eV]8,64
2. ionizing potential [eV]16,53
3. ionizing potential [eV]25,3
Mohs hardness3
Vickers hardness [MPa]-
Brinell hardness [MPa]294
shear modulus [GPa]20
Young's modulus [GPa]55
state at normal conditionssolid

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