Quiz 7 SM1 Chemistry (Xin)
Transcript of Quiz 7 SM1 Chemistry (Xin)
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7/26/2019 Quiz 7 SM1 Chemistry Xin
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CHONG HWA INDEPENDENT HIGH SCHOOL
CHEMISTRY
SENIOR MIDDLE LEVEL 1 (XIN / PING)
=QUIZ 7=
(Cha!"# $ Ch"%&'a *+,-)
T&%". 0 %&+!"-
ESSAY QUESTIONS
1. Table below shows the proton number of the elements U, V, W and X
Element U V W X
Proton Number 1 6 17 19
a! "ased on the table, #hoose two elements that form a #ompound w$th h&2h
melt$n% po$nt and bo$l$n% po$nt. E&pla$n how the #ompound $s formed and
draw the ele#tron arran%ement. '( mar)s*
b! "ased on the table, #hoose two elements that form a #ompound w$th *3
melt$n% po$nt and bo$l$n% po$nt. E&pla$n how the #ompound $s formed and
draw the ele#tron arran%ement. '( mar)s*
#! E&pla$n the d$fferen#e $n ph+s$#al propert$es for both #ompound a! and b!
other than melt$n% po$nt and bo$l$n% po$nts. ' mar)s*