Which element is a transition metal located in Period 6?
- A) Platinum
- B) Gold
- C) Palladium
- D) Silver
Answer: B) Gold
Which property of an element tends to increase as you move down a group in the Periodic Table?
- A) Electronegativity
- B) Ionization energy
- C) Atomic radius
- D) Electron affinity
Answer: C) Atomic radius
Which of the following elements is an alkaline earth metal in Period 4?
- A) Calcium
- B) Magnesium
- C) Strontium
- D) Barium
Answer: C) Strontium
Which element in Group 15 has the highest ionization energy?
- A) Phosphorus
- B) Nitrogen
- C) Arsenic
- D) Antimony
Answer: B) Nitrogen
Which of the following elements is in Period 3 and is a metalloid?
- A) Silicon
- B) Boron
- C) Aluminum
- D) Phosphorus
Answer: A) Silicon
Which of the following trends is observed in the Periodic Table with regard to electron affinity?
- A) It increases from left to right within a period.
- B) It decreases from left to right within a period.
- C) It decreases from top to bottom within a group.
- D) It remains constant across periods.
Answer: A) It increases from left to right within a period.
Which element in Period 4 has the electron configuration [Ar] 4s² 3d⁷?
- A) Cobalt
- B) Iron
- C) Nickel
- D) Copper
Answer: A) Cobalt
Which of the following elements has the smallest atomic radius?
- A) Beryllium
- B) Boron
- C) Carbon
- D) Nitrogen
Answer: D) Nitrogen
Which of the following elements is most likely to lose two electrons to form a +2 ion?
- A) Sodium
- B) Calcium
- C) Iron
- D) Aluminum
Answer: B) Calcium
Which of the following is a characteristic of noble gases?
- A) They have low ionization energies.
- B) They are highly reactive.
- C) They have full outer electron shells.
- D) They form metallic bonds.
Answer: C) They have full outer electron shells.