10. the number of protons in an atom is determined by the?

a. symbol
b. atomic mass
c. atomic number
d. group or period

atomic number

Explanation:

the atomic number is the same as the number of protons, you can identify it in the periodic table.

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.