1. Which of the following has a positive charge?
(A) proton
(B) neutron
(C) anion
(D) electron ANS = A
2. How many electrons are there in the valence shell of the O2–
ion?
A 2
B 8
C 10
D 16 ANS = B
3. What is the formula of the compound formed between magnesium and oxygen?
A MgO
B Mg2O2
C Mg2O3
D MgO2 ANS = A
3. Which one of the following statements concerning elements in the Periodic Table is
correct?
A Elements of the same group all have the same number of electrons in the outermost
occupied electron shell.
B Elements of Group 16 occur as cations in ionic compounds.
C Oxides of elements in Groups 16 and 17 are basic.
D The halogens are all gases at room temperature. ANS = A
4. Which one of the following species has the same electron configuration as Al3+
cation?
A. F
– B. Cl– C. S
2– D O–
ANS = A
5. Which of the following has a positive charge?
(a) proton
(b) neutron
(c) anion
(d) electron
Frontiers, E. (2023). CHM 101- Exam Questions. Afribary. Retrieved from https://track.afribary.com/works/chm-101-exam-questions
Frontiers, Edu "CHM 101- Exam Questions" Afribary. Afribary, 01 Mar. 2023, https://track.afribary.com/works/chm-101-exam-questions. Accessed 15 Nov. 2024.
Frontiers, Edu . "CHM 101- Exam Questions". Afribary, Afribary, 01 Mar. 2023. Web. 15 Nov. 2024. < https://track.afribary.com/works/chm-101-exam-questions >.
Frontiers, Edu . "CHM 101- Exam Questions" Afribary (2023). Accessed November 15, 2024. https://track.afribary.com/works/chm-101-exam-questions