Alpha Particle Charge: Is it 2x2.50x10^-21?

[randomss444]

Homework Statement

What is the charge of an alpha particle?

Charge of electron = 2.50x10^-21

Homework Equations

The Attempt at a Solution

Would you have to multipy 2.50x10^-21 x 2 to get the charge?

 

[rock.freak667]

The Attempt at a Solution

Would you have to multipy 2.50x10^-21 x 2 to get the charge?

The charge of an electron is 1.6x10^-19C. Use that instead.

 

[iomtt6076]

Charge of electron = 2.50x10^-21

Where does that number come from and what are the units? I ask because I thought the charge of an electron is -1.602 x 10^-19 Coulombs.

What is the charge of an alpha particle?

An alpha particle is two protons and two neutrons. Only the protons have charge so...

 

[randomss444]

Okay the charge of the proton is 1.60x10^-19 C. What I am asking is what is the charge of an alpha particle. Do you have to multiple the charge by 2 because there are two protons? Or is the charge just 1.60x10^-19 C.


Thanks

 

[graphene]

Yes, you would have to multiply by two.