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Explanation of The Holy Trinity, from Seeking Allah, Finding Jesus by Nabeel Quereshi:
Projected in the front of the room were three large depictions of nitrate in bold black and white. We were studying resonance, the configuration of electrons in certain molecules. The basic concept of resonance is easy enough to understand, even without a background in chemistry. Essentially, the building block of every physical object is an atom, a positively charged nucleus orbited by tiny, negatively charged electrons. Atoms bond to one another by sharing their electrons, forming a molecule. Different arrangements of the electrons in certain molecules are called resonance structures. Some molecules, like water, have no resonance while others have three resonance structures or more, like the nitrate on the board.