Table:
text: Noble metal
Electrochemistry
Electrochemistry
element_ group_ period reaction potential
Polonium 16 6 Po 2+ + 2e − → Po 0.65 V
Rhodium 9 5 Rh 2+ + 2e − → Rh 0.600 V
Ruthenium 8 5 Ru 2+ + 2e − → Ru 0.455 V
Copper 11 4 Cu 2+ + 2e − → Cu 0.337 V
Bismuth 15 6 Bi 3+ + 3e − → Bi 0.308 V
Technetium 7 5 TcO 2 + 4 H + + 4e − → Tc + 2 H 2 O 0.272 V
Rhenium 7 6 ReO 2 + 4 H + + 4e − → Re + 2 H 2 O 0.259 V
Antimony 15 5 Sb 2 O 3 + 6 H + + 6e − → 2 Sb + 3 H 2 O 0.152 V

text: Noble metal
Electrochemistry
Electrochemistry
element_ group_ period reaction potential
Gold 11 6 Au 3+ + 3e − → Au 1.56 V
Platinum 10 6 Pt 2+ + 2e − → Pt 1.18 V
Iridium 9 6 Ir 3+ + 3e − → Ir 1.156 V
Palladium 10 5 Pd 2+ + 2e − → Pd 0.987 V
Osmium 8 6 OsO 4 + 8 H + + 8e − → Os + 4 H 2 O 0.838 V
Silver 11 5 Ag + + e − → Ag 0.7996 V
Mercury 12 6 Hg 2+ 2 + 2e − → 2 Hg 0.7973 V

Question: Which period 5 of the potential is 4 and has an antimony element under noble metal?