The correct answer is B because isotopes have different numbers of neutrons, and neutrons are located in the nucleus
Hope this helps
Newton’s second law is that the acceleration of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass.
Answer:
Boiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water.
(credits to lumenlearning)
Explanation:
To balance an equation, you do whatever you did on one side, on the other side. If you subtract, then you subtract on the other side. If you multiply, you multiply on the other side, etc...
they travel the speed of light or 300,000 km per second
