5 What Do Atoms Look Like Chemistry Worksheet With Answers - South Pasadena
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5South Pasadena • Chemistry
Names__________________________________
Period ___ Date ___/___/___
5 • What Do Atoms Look Like?
R E C O G N I Z I N G T R E N D S 1
In each group of atoms, circle the atom with the…
largest
largest
smallest
smallest
atomic radius
ionization energy
atomic radius
ionization energy
Li Be
C
N
S
Cl
Cl Ar
Na
Mg
Al Si
Se Br
Br
Kr
Iodine, I, would have
properties most like:
N
Cl
N, nitrogen
Cl, chlorine
Te, tellurium
Xe, xenon
Te
I
Xe
South Pasadena • Chemistry
Name ____________________________________
Period ___ Date ___/___/___
5 • What Do Atoms Look Like?
V A L E N C E E L E C T R O N S 2
Draw the orbital diagram for As (Z=33)
For each element below, write in the number of valence
Draw a box around the valence electrons .
electrons that it has:
H
He
1
2
Li
Be
B
C
N
O
F
Ne
1
2
3
4
5
6
7
8
Na
Mg
Al
Si
P
S
Cl
Ar
1
2
3
4
5
6
7
8
Which orbital(s) are farthest from the nucleus?
__4s & 4p__
Which orbital(s) are highest energy?
__4p__
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