Using masses of protons, neutrons, and electrons

[claudia_1h]

I've noticed that several homework problems require the use of the numerical masses of protons, neutrons, and electrons. Do we need to memorize these values or would they be given on a test?

[AKatukota]

It seems that we would probably be given these values or they would be found on some sort of reference table. But it also would not be a bad idea to know their general values.

[Rachel Yu 1G]

If it's needed for a test then the amount should be on the formula sheet. Otherwise, I don't think we'd be tested with a question that required us to memorize the mass of protons, neutron, and electrons. Also, these values are given on the back of the hardcover textbook along with a lot of other formulas/constants.

[Natalie Nartz 4F]

I don't think we'll have to memorize them. But, the masses of each are as follows

electron: 9.11*10^-31 kg
proton: 1.675*10^-27 kg
neutron: 1.673*10^-27 kg

[Lauren Tanaka 1A]

I went to one of the UA sessions and they gave us a constants and equations sheet for practice problems. On that sheet was the masses of protons, neutrons, and electrons so I'm assuming that we don't need to know these values.

[Donna Nguyen 2L]

We probably don't need to memorize the masses. If anything, I think we would need to know the mass of an electron since it seems to be the most commonly used, but I don't think we'll need to memorize it.

[Anvi Brahmbhatt 4A]

I don't think we need to memorize the values. Many values are already provided on the formula sheet. However, try to know their masses relative to each other.

[Madeline Phan 1E]

Usually, the masses that are required for a calculation are given in the problem or on the formula sheet.