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Altius 5 FL Question 39 - C/P
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Josh_4080
#1 Posted : Sunday, July 05, 2020 5:22:55 PM
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This question asks us to determine which metal would behave similarly to cobalt. I always thought that for a question of this nature you look at the groups. So I selected Rh. When am I supposed to focus on the grouping of atoms to determine similar behaviour and when should I focus on row proximity?
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INSTR_Katerina_102
#2 Posted : Sunday, July 05, 2020 6:40:01 PM
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This is a bit of a tricky question.

Rhenium is actually not Rh - Rh is Rhodium and Rhenium is Re.

Re is further away than iron is from Cobalt and is not in the same row, so Fe becomes the better answer.

I would recommend keeping in mind the little tricks that exist in the periodic table - for example Thorium vs Thalium and Rhenium vs Rhodium - these can really confuse people that don't know the periodic table as well, as the MCAT will only give you 2 letters on the periodic table and expect you to extrapolate the rest.

On the bright side, a lot of students would also have gotten caught on that type of question (myself included).
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