30 si Use the atomic masses on the table below to calculate Am for the change 14 2 "N. u Which is more stable: 14 protons, 16 neutrons, and 14 electrons when they are combined as two 15 N atoms or as one 30 si atom? a. two 15N atoms b. one 30si atom Particle or atom Mass (u) proton 1.007276 neutron 1.008665 electron 0.000549 15.000109 30 14 Si 29.973770

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.