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.
Symptoms associated with a UCL injury include: 1  Pain on the inside of the elbow. 2  A sense of looseness or instability in the elbow. 3  Irritation of the funny bone (ulnar nerve): This is felt as tingling or numbness in the small finger and ring finger.4  Decreased ability to throw a baseball or other object.ow UCL Injuries Develop. The UCL is located on the inside of the elbow. It connects the bone of the upper arm (humerus) to a bone in the forearm (ulna). Anyone can get a UCL injury from repetitive stress to the elbow or from trauma.