What materials have high, mid-range, and low electron affinity and conductivity?

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Archosaur
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Can anyone name for me:

a] a material that has a HIGH electron affinity and is a GOOD conductor of electricity.

b] a material that has a MID-RANGE electron affinity and is a POOR conductor of electricity.

c] a material that has a LOW electron affinity and is a GOOD conductor of electricity.

Bonus points if you can guess what I'm going to do with these materials.
 
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ZapperZ said:
What do you mean by "high", "good", "poor", "low", and "midrange"?

I mean relative to each other.

Sorry for assuming you could have inferred that.
 
Archosaur said:
I mean relative to each other.

Sorry for assuming you could have inferred that.

Er.. how is that clear?

For example, look at your first criteria:

a material that has a HIGH electron affinity and is a GOOD conductor of electricity.

What am I comparing here if I'm doing this "relative to each other"? If I'm opening up the CRC Handbook, what am I comparing?

Zz.
 
I would say that relative to aluminum, silicone rubber has a high electron affinity and is a poor conductor.