Review Units 1 + 2 + 3

How many valance electrons does this atom have? (Enter numbers ONLY)

Which of these element have similar properties as [Kr] Krypton

• Calcium [Ca]

• Neon [Ne]

• Potassium [K]

• Oxygen [O]

Which atomic model is this one?

• Solid Sphere Model

• Plum Pudding Model

• Nuclear Model

• Planetary Model

How many electrons does this ion have? (Enter numbers ONLY)

This is a(n)...

• Cation

• Anion

How many neutrons does this atom have? (Enter numbers ONLY)

How many electrons are in the second shell of Fluorine [F] ?

• 2

• 5

• 6

• 7

Question #1 - Which of the Lewis Dot Structure is INCORRECT?

• Sulfur [S]

• Chlorine [Cl]

• Nitrogen [N]

• Lithium [Li]

Which of the following pair can make an ionic bond?

• ZnCl

• HF

• H₂O

• Cl₂

Which of the following compound is POLAR?

• Cl₂

• LiF

• CO₂

• CH₄