This document contains 9 practice questions for a common assessment on chemical elements and the periodic table. The questions cover topics like which group of elements usually gains electrons, which element most readily accepts electrons, identifying elements based on their number of protons and valence electrons, determining an unknown element based on its properties and atomic mass, which group of elements is most likely to react with magnesium, which group of elements are non-reactive, which elements react in the most similar way, which element donates two electrons, and which element carries a +1 charge.

1. Common Assessment #3 Practice Questions

2. Question #1 Group 17 molecules on the periodic table usually— A. Become solids B. Lose electrons C. Gain electrons D. Form large molecules Answer: C

3. Question #2 Which element most readily accepts electrons? A. Nitrogen B. Lithium C. Silicon D. Chlorine Answer: D

4. Question #3 An element with 5 valence electrons and 5 protons is most likely: A. Boron B. Neon C. Cesium D. Aluminum Answer: A

5. Question #4 An unidentified element has been discovered. It has properties similar to Fluorine and Bromine. But it has a higher atomic mass than either one. What is it? A. Sulfur B. Xenon C. Iodine D. Sodium Answer: C

6. Question #5 The elements from which group most likely react with Mg? A. Group 2 B. Group 16 C. Group 17 D. Group 13 Answer: B

7. Question #6 Which elements are non-reactive and do not combine with any other element? A. Group 18 B. Group 17 C. Group 11 D. Group 1 Answer: A

8. Question 7 Which elements react in the most similar way? A. Na, Mg, Al B. O, F, B C. Li, Na, K D. Si, As, Te Answer: C

9. Question #8 Which element donates 2 electrons? A. Na B. La C. O D. Sr Answer: D

10. Question #9 Which element carries a +1 charge? A. Na B. Be C. F D. O Answer: A