Yo my knowledge, refraction.
Third model shows how a comet's tail changes during its orbit...
mark brainliest
Hey there!
When light changes speed, it REFRACTS.
Your answer is going to be option C.
Hope this helps you.
Have a great day!
Answer:
t.f. are you sure that's english? it looks like not a real thing
Explanation:
Answer:
protons
atomic number
Note: The same atomic number can be associated with several different values of atomic mass, but an element can have only 1 atomic number,