Answer:
The person above me is right i had a test a couple of days ago and thats kinda what u put and got it right!
The ratio would be 1:1 or in other terms the number of protons are equal to the number of neutrons and vice-versa.
<span>A mechanical wave is created when a source of energy causes a vibration to travel through a medium
And yeah lol
A mechanical wave is a disturbance in matter that carries energy from one place to another :)
This what you needed? </span>
