Answer:
21
Explanation:
there are supposed to be 2 chromosomes, not 3. This person has down syndrome.
It is a <span>photosynthetic algae contained in reef building corals underwater</span>
Rutherford reasoned that if Thomson's model was correct then the mass of the atom was spread out throughout the atom. Rutherford was forced to discard the Plum Pudding model and reasoned that the only way the alpha particles could be deflected backwards was if most of the mass in an atom was concentrated in a nucleus.
