Which of the following are not grouped according to similar chemical properties?
A. Ruthenium, iridium, palladium
B. Gold, silver, copper
C. Cobalt, iron, nickel
D. Iron, copper, ruthenium

Question

Which of the following are not grouped according to similar chemical properties? 
A.  Ruthenium, iridium, palladium 
B.  Gold, silver, copper
C.  Cobalt, iron, nickel
D.  Iron, copper, ruthenium

anonymous · Answer

b or c but again that just me

jfraser · Answer

the short rule for similar chemical properties is "same column, same properties". Find the options that don't fit that rule

anonymous · Answer

C? @JFraser

jfraser · Answer

cobalt, iron, and nickel all come from the same period of the transition metals. You need to find a set that doesn't all come from the same column or row