SLE133 Lecture 3: Chapter 3 sample question

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greenprairie-dog776

11 May 2018

School

Deakin University

Department

Science, Engineering and Built Environment

Course

SLE133

Professor

Annie Teo

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DiplomaofHealthSciences

DiplomaofScience

SLE133ChemistryinOurWorld

SLE133CHEMISTRYINOURWORLDSAMPLEQUESTIONS2018 Page6of25

Q3IonicCompounds[1+3+2+2+2=10marks]

a)Whichelementislikelytoloseanelectronmoreeasily?

 [1mark]



Ca/Co



b)i)Writethesymbolfortheionanditsfullelectronconfigurationsforthefollowingions:

[2marks]

Gainoftwoelectronsbyselenium



Lossofoneelectronbypotassium



ii)Whatissimilarabouttheseionsintermsoftheirelectronicconfiguration?

[1mark]



c)ElementXreactswithelementYtogiveaproductcontainingX2+andY3–ions.

Answerthefollowingquestions.

[½+½+1=2marks]

IselementXlikelytobeametaloranonmetal?

metal/nonmetal



IselementYlikelytobeametaloranonmetal?

metal/nonmetal



Writetheformulaoftheproduct.



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SLE133 Lecture 3: Chapter 3 sample question

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