A radioactive isotope has the same number of protons as its stable parent atom, but differs in its number of what?
a) electrons
b) neutrons
c) galactrons
d) voltrons
please help me

1= c 2= a or d3 = idk sorry 4= c5= c

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.