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Author Topic: What element on Earth is the largest naturally occuring atom?  (Read 13301 times)

Offline carmen price

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carmen price  asked the Naked Scientists:
   
Hi,

I have started level 1 chemistry/physics this year and i need your help in finding out what element on earth is the largest naturally occuring atom?

What do you think?


 

Offline lightarrow

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What element on Earth is the largest naturally occuring atom?
« Reply #1 on: 16/02/2009 15:53:37 »
carmen price  asked the Naked Scientists:
   
Hi,

I have started level 1 chemistry/physics this year and i need your help in finding out what element on earth is the largest naturally occuring atom?

What do you think?
According to wiki it's Iron, 32%:
http://en.wikipedia.org/wiki/Earth
Quote
Chemical composition

    See also: Abundance of elements on Earth

The mass of the Earth is approximately 5.981024 kg. It is composed mostly of iron (32.1%), oxygen (30.1%), silicon (15.1%), magnesium (13.9%), sulfur (2.9%), nickel (1.8%), calcium (1.5%), and aluminium (1.4%); with the remaining 1.2% consisting of trace amounts of other elements. Due to mass segregation, the core region is believed to be primarily composed of iron (88.8%), with smaller amounts of nickel (5.8%), sulfur (4.5%), and less than 1% trace elements.[48]

Of course, if the question regarded only the Earth Crust, the answer would have been different.
« Last Edit: 16/02/2009 15:56:32 by lightarrow »
 

Offline dentstudent

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What element on Earth is the largest naturally occuring atom?
« Reply #2 on: 16/02/2009 15:55:13 »
lightarrow - I think she means the largest, not most abundant...

I think.... ???

which means that the heaviest naturally occurring element that is commonly found is Uranium,
with an atomic mass of 92, although tiny traces of plutonium (94) can be
found in nature as well.

I think.... ???
« Last Edit: 16/02/2009 16:01:09 by dentstudent »
 

Offline lightarrow

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What element on Earth is the largest naturally occuring atom?
« Reply #3 on: 16/02/2009 16:05:28 »
lightarrow - I think she means the largest, not most abundant...

I think.... ???

which means that the heaviest naturally occurring element that is commonly found is Uranium,
with an atomic mass of 92, although tiny traces of plutonium (94) can be
found in nature as well.

I think.... ???
If instead she intended the largest in size, it's Caesium, with a radius of 260pm:
http://en.wikipedia.org/wiki/Atomic_radius
« Last Edit: 17/02/2009 14:53:58 by lightarrow »
 

Offline Chemistry4me

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What element on Earth is the largest naturally occuring atom?
« Reply #4 on: 17/02/2009 02:47:53 »
If instead she intended the largest in size, it's Caesium, with a radius of 260nm:
I think that it should be 260 pm Mr. lightarrow or 0.260 nm :)
 

Offline lightarrow

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What element on Earth is the largest naturally occuring atom?
« Reply #5 on: 17/02/2009 14:53:27 »
If instead she intended the largest in size, it's Caesium, with a radius of 260nm:
I think that it should be 260 pm Mr. lightarrow or 0.260 nm :)
My God! You're right!
Post edited. Thank you.
 

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What element on Earth is the largest naturally occuring atom?
« Reply #5 on: 17/02/2009 14:53:27 »

 

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