How is your family heritage important to you ? I’ll give brainliest to whoever answers 1st!!

Free points! :)

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?