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.
The MCL tear symptoms tend to correlate with the grade of the injury, on a scale of I to III. 1  Grade I MCL Tear Symptoms: This grade refers to an incomplete tear of the ligament. 2  Grade II MCL Tear Symptoms: These injuries are also incomplete tears of the MCL, but of a more severe nature. Patients report instability, especially during certain cutting or pivoting maneuvers, and their pain and swelling is much more significant than during a Grade I tear.