## Mass of Protons, Neutrons, Electrons, Etc.

$\lambda=\frac{h}{p}$

RRahimtoola1I
Posts: 67
Joined: Fri Aug 09, 2019 12:15 am

### Mass of Protons, Neutrons, Electrons, Etc.

2 questions:

For the mass of protons, neutrons, and electrons can we just look it up online or is there a certain value the book wants us to use and where would I find these values?

For tests, will we be given the mass of these particles?

sbeall_1C
Posts: 88
Joined: Sat Sep 07, 2019 12:17 am
Been upvoted: 1 time

### Re: Mass of Protons, Neutrons, Electrons, Etc.

The value for the mass of the subatomic particles are given in the book and on the tests, the masses should be on the information sheet.

Alex Chen 2L
Posts: 71
Joined: Wed Sep 18, 2019 12:21 am

### Re: Mass of Protons, Neutrons, Electrons, Etc.

In terms of AMUs (atomic mass units), neutrons and protons both are 1 AMU in mass, and electrons are much smaller at ~0.00054 AMU. However, since you often need the mass in SI units to use in calculations, either the question or the equations sheet should provide the mass if it is necessary.

Maeve Miller 1A
Posts: 51
Joined: Fri Aug 09, 2019 12:16 am

### Re: Mass of Protons, Neutrons, Electrons, Etc.

The masses of the subatomic particles are listed in the back of our textbook, so you can use that for homework; those constants should be provided on any assessment