My educated guess should be the 3rd one
Answer:
16 is the mass number. 8 is the atomic number.
Electrons are found in the cloud that's surrounded the nucleus of an atom
I think the correct answer from the choices listed above is option D. When a molecular compound melts, they undergo the process of phase change from solid to liquid therefore m<span>olecules arranged in a regular pattern change to an irregular pattern. Hope this answers the question.</span>