CHM 101: NEW EXAM QUESTIONS

Authors: Edu Frontiers | Natural & Applied Sciences Chemistry Study 23 pages 3,522 words

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1. Which of the following has a positive charge?

(A) proton

(B) neutron

(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?