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Electron Configuration

Total questions: 30

Worksheet time: 2hrs 39mins

Name
Class
Date
1.

What electron configuration matches an oxygen atom?

a)

1s22s22p63s2, 3p64s23d104p5

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p64s23d1

2.

Identify the Electron Configuration for Aluminum (Al)

a)

1s2 2s2 2p6 3s2 3p1

b)

1s2 2s2 2p6 3s2 3p3

c)

1s2 2s2 2p6 3s2 4p1

3.

What atom matches this electron configuration?

1s22s22p63s23p64s23d10

a)

Zinc

b)

Copper

c)

Nickel

d)

Germanium

4.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
5.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
6.
There are 4 different types of subshells s,p,d,f
a)
true
b)
false
7.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
8.
Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?
a)
Hund’s Rule
b)
Aufbau Principle
c)
Pauli Exclusion Principle
9.

How many electrons can the d sublevel (the d orbitals) hold?

a)

14

b)

10

c)

2

d)

6

10.

Choose the correct shortcut configuration for iodine.

a)

[Ar]4s24d104p5

b)

[Kr]5s24d105p5

c)

[Xe]5s25d105p5

d)

none of the above

11.

Each row on the periodic table represents:

a)

an energy level

b)

a sublevel

c)

an electron

d)

an orbital

12.

Which area on the periodic table represents the electrons in the "d" sublevel (d orbitals)?

a)

representative elements

b)

columns 3-8

c)

rare earth elements

d)

transition elements

13.

In an electron configuration, what follows 4s?

a)

4p

b)

3d

c)

4s

d)

2f

14.
What is the noble gas configuration for beryllium?
a)
[He]1s2
b)
[He]2s2
c)
[Li]2s1
d)
[Li]2s2
15.

Choose the Noble Gas that you would use to begin the shorthand configuration of the following element.

Plutonium (Pu)

a)

[Xe]

b)

[Ne]

c)

[Rn]

d)

[Kr]

16.
How many electron can be found in a p orbital?
a)
2
b)
3
c)
4
d)
6
17.
How many electron can be found in a s orbital?
a)
2
b)
3
c)
4
d)
1
18.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
19.
What is incorrect about this orbital diagram?
a)
Both arrows in the 2p box should be pointing up
b)
There is nothing incorrect with this diagram
c)
In the 2p box there should only be 1 electron in the first 2p box and one in the 2nd 2p box
d)
All the arrows should be pointing up.
20.

There are __ energy levels

a)

1

b)

2

c)

7

d)

8

21.
What is the shorthand electron configuration for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p3
22.
What is the maximum number of electrons that an orbital can have?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
23.
What is this element? 
1s22s22p63s23p6
4s23d104p6
a)
Argon
b)
Krypton
c)
Selenium
d)
Bromide
24.

Which are the four atomic orbitals?

a)

s,p,d,f

b)

a,b,c,d

c)

s,t,e,p

d)

d,r,o,f

25.

What is incorrect about this orbital diagram?

a)

Only the arrows in the 2p box should be pointing up

b)

There is nothing incorrect with this diagram

c)

All the arrows should be pointing down

d)

The arrows should rotate up down, up down

26.
Which is associated with more energy? 
a)
2p
b)
2s
c)
3p
d)
1s
27.
How many total electrons can the f orbitals in a sublevel hold?
a)
2
b)
14
c)
6
d)
10
28.
Which of the following is a p block element?
a)
Ca
b)
Ar
c)
Re
d)
Au
29.
1.  What is the shape of an s orbital?
a)
sphere
b)
dumbbell
c)
double dumbbell
d)
TOO COMPLEX TO KNOW IT.
30.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10

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