Energy in a vacuum travels by .

A) radiation

B) conduction

C) convection

neutrons are in the middle of the atom and the electrons, which are much smaller.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

the right answer is c i just did the question.