There are several different models that represent compounds. One type of model is shown. A large black sphere connected to 4 small blue spheres by 4 grey sticks. What type of model is shown? a structural formula a chemical formula a space-filling model a ball-and-stick model

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.

5.6⋅10−^19  j

do you need the explaination?