Number of protons= atomic number, you can use the mass of the element to find out which element it is then based on which element it is you can find out how many protons it has. I hope this was the answer you are looking for!
Answer:24 kilometers
Explanation:Density divided by time
The answer to the question is D.
When the new star reaches a certain size, a process called nuclear fusion ignites, generating the star's vast energy. The fusion process forces hydrogen atoms together, transforming them into heavier elements such as helium, carbon and oxygen.