Someone was asleep!

Most of the PMs are resistant -- gold, platinum, iridium, rhodium, palladium. Silver's sort of a historic outlier -- it's not all that rare, but it occurs as native metal in nature, it's easy to work, and it's shiny. Chemically, it's got more in common with copper than with the others.

 

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I'd slip Aluminum in there after Iron and I'd reverse Copper and Nickel.

Aluminum is actually very reactive but it forms a protective oxide layer that stop further reaction.

 

Until it gets near 35% H2O2. Then all bets are off.

 

I was mostly going by the EMF table. Aluminum's a lot more reactive than even zinc; if not for that oxide coating, it would displace hydrogen from water. Any acidic or basic environment can attack it. We were reminded of this when we discovered that our aluminum baking pans, which we'd been running through the dishwasher, had developed pinholes -- the alkaline detergent attacked them.

Nickel's definitely more active than copper, but again, tends to form a protective oxide coating. Nickel falls above hydrogen in the table, so it can be attacked by even weak hydrochloric acid; not copper (copper needs an oxidizing agent to go into solution). Leave a nickel in vinegar for a few months, and you'll find it copper-colored, sitting in a greenish-blue bath of nickel acetate.

Copper's more like the rest of the PMs in that it occurs uncombined in the earth's crust. Not so for iron, nickel, aluminum or zinc -- unless you count meteorites.

 

Holy thread hijack batman!

 

Imminent domain!

 

Eminent. Eminent Domain.

 

Yep. But on my phone every time I tried, it corrected to Eminem.
J/K.

 

Come on, LC!! Don't you know there are "different" ways to spell words??

 

Yea, there are manney diffurent ways to spell words.

 

You missed a few. Here, let me fix that for you.

Yea, their are manney diffurent weighs too spell words.

 

So, was Detecto pointing out a threadjack, or asking for a threadjack?

 

He's probably forgotten about this thread already.

 

So that's what Detecto looks like (tee hee hee). Now which of you fine gentlemen are wearing the fashionable hoodies? :devil:

 

:yes:

 

I agree. They're our men knee wheys two spell phone etiquette lee.

 

Thanks for the correction, Hobo. I thought there might be a errer.

 

I had nutheeng to due with that!