Pls help with this question and provide the steps to get the answer :)

Order the following from smallest to largest atom, electron, quark, proton, neutron, molecule, nucleus

You are performing an experiment in a lab to attempt a new method of producing pure elements from compounds. the only problem is that you do not know what element will form. by your previous calculations you know that you will have 6.3 moles of product. when it is complete, you weigh it and determine you have 604.4 grams. what element have you produced?

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?