Unit 3: Periodic Table and Periodicity of Properties
- Which property increases as you move from top to bottom within a group of non-metals?
- A) Atomic radius
- B) Electronegativity
- C) Ionization energy
- D) Reactivity
Answer: A) Atomic radius - Which of the following elements would have the highest ionization energy?
- A) Sodium
- B) Magnesium
- C) Fluorine
- D) Neon
Answer: D) Neon - Which element in Group 15 has the highest electronegativity?
- A) Nitrogen
- B) Phosphorus
- C) Arsenic
- D) Antimony
Answer: A) Nitrogen - Which of the following has the greatest metallic character?
- A) Iron
- B) Zinc
- C) Copper
- D) Calcium
Answer: D) Calcium - Which element is a halogen and is located in Period 3?
- A) Chlorine
- B) Fluorine
- C) Bromine
- D) Iodine
Answer: A) Chlorine - Which of the following elements has the highest atomic number?
- A) Oxygen
- B) Carbon
- C) Neon
- D) Argon
Answer: D) Argon - Which trend is observed for electronegativity as you move down a group in the Periodic Table?
- A) It increases
- B) It decreases
- C) It remains constant
- D) It first increases then decreases
Answer: B) It decreases - Which of the following is the most reactive metal?
- A) Lithium
- B) Sodium
- C) Potassium
- D) Rubidium
Answer: D) Rubidium - Which element has the electron configuration [Kr] 5s² 4d¹⁰ 5p²?
- A) Tin
- B) Lead
- C) Germanium
- D) Carbon
Answer: A) Tin - Which of the following elements is not a metalloid?
- A) Boron
- B) Silicon
- C) Phosphorus
- D) Arsenic
Answer: C) Phosphorus