5 What Do Atoms Look Like Chemistry Worksheet With Answers - South Pasadena Page 4
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5South Pasadena • Chemistry
Name__________________________________
Period ___ Date ___/___/___
5 • What Do Atoms Look Like?
P E R I O D I C P U Z Z L E R S 7
The following elements belong together in families as grouped below. Use the clues to fill in the chart.
AQ, MB, GNC
1
18
G
2
13
14
15
16
17
M
A
C
B
Q
N
Clues:
1.
A is the second most abundant gas in the atmosphere.
2.
G has the highest ionization energy of any atom.
3.
M forms 2+ ions.
4.
N is the largest member of its group.
5.
B has a greater atomic radius than M.
South Pasadena • Chemistry
Name ___________________________________
Period ___ Date ___/___/___
5 • What Do Atoms Look Like?
I O N I Z A T I O N E N E R G I E S 8
This is a graph of the ionization energies for the
Use the information on this chart to determine which
first 20 elements by atomic number.
families are W, X, and Y:
1
2
13
14
15
16
17
18
H
He
Ionization Energy
1
131
237
Li
Be
B
C
N
O
F
Ne
2
52
90
80
109
140
131
168
208
Na
Mg
Al
Si
P
S
Cl
Ar
3
49
74
58
79
106
100
126
152
K
Ca
4
42
59
W is the
_____Alkali
Metals________ family.
X is the
______Noble
Gases_________ family.
Y is the
_____Alkali Earth
Metals___ family.
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