Calculating Copper Cu Charge Density

In summary, the charge density of Copper Cu can be calculated by first converting the atomic mass to kilograms using the formula 63.5 x 1.66^10-27 = 1.0541 x 10^-25kg, and then dividing the density, which is 8920 kgm^-3, by the converted atomic mass. This results in a value of 8.462195238 x10^28m^-3, which is different from the expected value of 10^9m^-3 according to Wikipedia. It is unclear where the value of 1.66 x 10^-27 comes from and if it has any units.
  • #1
j-lee00
95
0
How do I work out the charge density of Copper Cu, if


atomic mass =63.5
Density = 8920 kgm^-3

Assume 1 electron per cu atom.
 
Physics news on Phys.org
  • #2
j-lee00 said:
How do I work out the charge density of Copper Cu, if


atomic mass =63.5
Density = 8920 kgm^-3

Assume 1 electron per cu atom.

Can you define charge density?
 
  • #3
number of electrons per unit volume
 
  • #4
j-lee00 said:
number of electrons per unit volume

OK, so assume, say 1m3. How many atoms of copper are there in this volume?
 
  • #5
To convert atomic mass to kg, I do

63.5 x 1.66^10-27 = 1.0541 x 10^-25kg

Then

8920 kgm^-3 / 1.0541 x 10^-25kg = 8.462195238 x10^28m^-3

but it should be around 10^9 says wikepedia?
 
  • #6
j-lee00 said:
To convert atomic mass to kg, I do

63.5 x 1.66^10-27 = 1.0541 x 10^-25kg

Then

8920 kgm^-3 / 1.0541 x 10^-25kg = 8.462195238 x10^28m^-3

but it should be around 10^9 says wikepedia?

Where does the 1.66 x 10-27 come from? (does that have any units?)
 
Last edited:

1. How is copper charge density calculated?

Copper charge density is calculated by dividing the total charge of a copper atom by its volume. This can be determined using experimental data or theoretical calculations based on atomic structure.

2. What factors influence the charge density of copper?

The charge density of copper can be influenced by factors such as the number of protons and electrons in the atom, the distance between the nucleus and the outermost electron shell, and the atomic radius.

3. Why is calculating copper charge density important?

Calculating copper charge density is important in understanding the properties and behavior of copper in various chemical reactions and applications. It can also provide insight into the electronic structure and bonding of copper compounds.

4. Can copper charge density be measured experimentally?

Yes, copper charge density can be measured experimentally using techniques such as X-ray crystallography, electron density mapping, and nuclear magnetic resonance spectroscopy.

5. How does copper charge density relate to other properties of copper?

Copper charge density is closely related to other properties of copper, such as its electrical conductivity, thermal conductivity, and ability to form chemical bonds. It also affects the color, melting point, and density of copper.

Similar threads

  • Biology and Chemistry Homework Help
Replies
9
Views
3K
  • Biology and Chemistry Homework Help
Replies
3
Views
3K
  • Biology and Chemistry Homework Help
Replies
2
Views
2K
  • Biology and Chemistry Homework Help
Replies
2
Views
2K
  • Introductory Physics Homework Help
Replies
2
Views
977
  • Biology and Chemistry Homework Help
Replies
1
Views
2K
  • Quantum Physics
Replies
13
Views
2K
  • Biology and Chemistry Homework Help
Replies
1
Views
3K
  • Quantum Physics
Replies
1
Views
706
  • Introductory Physics Homework Help
Replies
2
Views
898
Back
Top