CHEMTHERAPY (MODULE D1T1 - D1T7)

Neutrons have what charge?

• Negative
• Positive
• Neutral
   (No Charge)

The image shows the periodic grid for POTASSIUM. What is Potassium's atomic number?

• 19
• 39
• 20
• Impossible to tell

Which element should be used as the central atom of a Lewis structure?

• A. The least electronegative element will be the central atom.

• B. The most electronegative will be the central atom.

• C. The largest atomic radius will be the central atom.

• D. The smallest atomic radius will be the central atom.

The _____ is the thing being dissolved.

• solute

• solvent

How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?

• A. 1074 mol

• B. 0.069 mol

• C. 1.07 mol

• D. 62.7 mol

How many atoms are in 117.3 grams of Potassium? (Molar mass of K : 39.1 g/mol)

• A. 6.02x10²³ atoms

• B. 39.1 atoms

• C. 3 atoms

• D. 1.80x10²⁴ atoms

Which one of the following does not represent the electronic configuration of an atom in its ground state?

• A. 1s² 2s² 2p³

• B. 1s² 2s² 2p⁴

• C. 1s² 2s² 2p⁶ 3s¹

• D. 1s² 2s² 2p⁶ 3d¹

Which guideline, Hund’s rule or the Pauli exclusion principle, is violated in the following orbital diagrams?

• A. Aufbau's principle

• B. Pauli exclusive principle

• C. Hund's Rule

No two electrons in the same orbital can have the same set of four quantum numbers (n,l,m,s)

• A. Aufbau principle

• B. Pauli exclusion principle

• C. Hund’s rule

• D. Noble gas notation

What is the correct representation for an orbital which has an "n" value of 4 and an "L" value of 2?

• A. 4f

• B. 4d

• C. 4s

• D. 4p