Rhenium and Iridium Periodic Table
Periodic Table
Symbol
Re
Ir
Group Number
7
11
9
9
Period Number
6
6
Block
d block
d block
Element Family
Transition Metal
Transition Metal
CAS Number
7440155
99+
7439885
99+
Space Group Name
P63/mmc
Fm_ 3m
Space Group Number
194.00
5
225.00
2
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