How do you calculate and determine atomic number, mass number, and net charge? Atomic number is the number of protons in an atom. Mass number is the number of neutrons in an atom, and net charge describes how the protons and electrons balance out. Tip: This isn't the place to ask a question because the teacher can't reply.
PCL Tear Symptoms & Diagnosis. 1  Pain. Mild to moderate pain in the knee can cause a limp, knee âgiving outâ, or difficulty walking. 2  Swelling. Within hours of the injury, knee will swell rapidly. 3  Instability. Feeling of a loose knee and not stable when standing or walking.
Signs and Symptoms of Extensor Carpi Ulnaris Injury and Pain. 1  Experiencing an excruciating sharp pain and discomfort on the outer part of the wrist. 2  An extremely weak grip can be a sign of extensor carpi ulnaris injury. 3  Any twisting motion of the wrist like opening a door can cause immense pain in the wrist.