When the blood supply to a portion of the brain is blocked, this causes
a. a. blackout
b. dizzy spells
c. stroke
d. heart attack

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space