2.2 Chemical Properties Key

2.2 Periodic Table and Chemical Properties
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1,. What does the atomic number of an element reveal about the sfructure of its atoms?
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2.
Complete the information for each element listed below.
Element
a.
Vr
Alomic #
Atomic Mass
lon Charge(s)
(
0
4
helium
g
/.0
+q
4-q
b. oxygen
t,
o/
ilt e lr unb(,r
c. iron
d. gold
e. copper
f. lithium
3
g. iodine
{4
h. mercury
tr0
/h,0
t< .t
/q7.0
CIg
(
64
46.f ,
Li,
Family/Group #
/f
2
l*
/+
//
4
/t
/.
/
4
kt
9;
vj
u
/+
{
L+, t+
bt
rtx
r
(/
r+
h/
n
//-v
/0
4
4+, z+
/Lb.q
rnc, b
Period,lRow #
{t,<,
/L
L
Indicate which element is heavier using greater than > and less than < symbols.
d. Tellurium
4.
a.
Use the greater than > and less than < symbols to identiff which atom has more protons.
Lithium
c- Xenon
5.
I
Sodium
b. Nitrogen
7
Potassium
d. Oxygen
Carbon
I
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Chlorine
Give.the ion eharge(s) for each elemeht. Circle the most common if there is more than one.
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a. Barium
2/t-
d.
Sulfir
g.
cobalt
b. Aluminum
e. Cesium
{Qri g*
h. Thallium
g,f
c. Arsenic
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f. Bromine
44t+
i. Antimony
rticle has to be removed frofr an atom
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o Chemistryo Assignment
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that the atom becomes
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7.
Some elements have an ion eharge of zero. What does this mean?
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8.
List some examples of elements that
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metals, metalloids, and non-metals.
Non-metals
9.
Complete the table.
Group #
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->
1
18.
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Element Example
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2.
17.
Major Family Characteristics
Family Name
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10. Determine which chemical family matches the given description.
Chemical Family
Description
alkrt/ne Mr{fl nhful!@)
a. Used in fueworks.
b. Contains solids, liquids and gases at room temperature.
c. Unreactive, colourless, odourless gaqses.
d. Highly reactive, soft enough to be cut with a knife.
11.
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Which subatomic particles determine the atomic mass of an atom?
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Science 9
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