what is the mass of the following particles:
o protons
o neutrons
o electrons

the answer is:

Explanation:

Relative mass:

electron:0

proton: 1

neutron: 1

actual mass (g):

electron:9.11×10^-28

proton and neutron: 1.67 × 10^-24

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)