A carbon-12 atom has 6 protons (6P) and 6 neutrons (6N). But some types of carbon have more than six neutrons. We call forms of elements that have a different number of neutrons, isotopes. For example, carbon-14 is a radioactive isotope of carbon that has six protons and eight neutrons in its nucleus.
Hope that helps
Oil or petroleum are nonrenewable resources, the others are renewable resources.
I believe it’s c for warm front then f for cold front. I hope that helps!
Boiling point of the fragments, for example Ethanol is 78 degrees C, and water is 100.