Answer:
I think the answer is A - they used X-ray analysis.
Explanation:
Answer:
Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).
Explanation:
The 2nd one I think but I need some points
<span>The transferred electron from lithium to fluorine provides each atom with a full outer energy level.</span>
In order to properly measure the displacement, the object must be completely submerged, however in the diagram the wood is floating. So the measured displacement will only be a fraction of what it actually is.