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

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Homework Help Overview

The discussion revolves around determining the charge of an alpha particle, which consists of two protons and two neutrons. Participants are questioning the charge value of an electron and how it relates to the charge of an alpha particle.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are attempting to clarify the charge of an alpha particle by considering the charge of protons and the relationship to the charge of an electron. There are questions about the source of the charge value provided for the electron and the appropriate units.

Discussion Status

Some participants have offered guidance on the charge of protons and the need to consider the number of protons in an alpha particle. There is an ongoing exploration of the correct values and relationships without a clear consensus on the charge of the alpha particle itself.

Contextual Notes

There is a noted discrepancy regarding the charge value of the electron, with one participant questioning the provided value and referencing a commonly accepted value instead. This indicates a potential misunderstanding or miscommunication about fundamental constants.

randomss444
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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?
 
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randomss444 said:

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.
 
randomss444 said:
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.

randomss444 said:
What is the charge of an alpha particle?
An alpha particle is two protons and two neutrons. Only the protons have charge so...
 
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
 
Yes, you would have to multiply by two.
 

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