19) Which of the following is the correct Lewis-dot formula for carbon dioxide (CO2)? Pict-05.png.gif

16) Atomic radius generally ______________ as we move down a group and it ______________ from right to left across a period.

13) Which of the subshells below do not exist due to the constraints upon the azimuthal quantum number?

11) Identify the subshell in which electrons with the following quantum numbers are found: n = 3, l = 1 n = 5, l = 3 n = 2, l = 0

2) Which of the following element has the largest atomic radius?

32) How many electrons are shared in a double covalent bond?

9) Which of these isoelectronic species has the smallest ionic radius?

When calculating the anion gap without including potassium (K⁺), what is considered the normal range?

A 52-year-old male presents to the emergency department with confusion and lethargy. His past medical history includes hypertension and diabetes mellitus. The following laboratory values are obtained: Sodium (Na⁺): 140 mEq/L Chloride (Cl⁻): 100 mEq/L Bicarbonate (HCO₃⁻): 24 mEq/L Blood Urea Nitrogen (BUN): 18 mg/dL Creatinine: 1.0 mg/dL Glucose: 110 mg/dL Calcium: 9.4 mg/dL What is this patient’s anion gap?

For which chronic problem are Phalen’s test and Tinel’s sign used to assess numbness and tingling in the hand?