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Practice: E-Con, Orbital Notation, Noble Gas Notation

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
2.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
3.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2 2s2 2p6 3s2 3p5
b)
1s2 2s2 2p6 3s2 3p6
c)
1s2 2s2 2p6 3s2 3p7
4.
This orbital diagram represents:  
a)
C
b)
B
c)
N
d)
O
5.
This orbital diagram represents:  
a)
C
b)
B
c)
N
d)
O
6.

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)

There should be 1 electron (arrow) in the first 2p box and one in the 2nd 2p box

d)

All the arrows should be pointing up.

7.
How many electrons can the d sublevel hold?
a)
14
b)
10
c)
2
d)
6
8.

Which rule is being violated in the following orbital diagram?

a)

Hund's

b)

Aufbau's

c)

Pauli's Exclusive

9.
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
10.

Which of the following statements regarding electronic orbitals is/are correct? (you may need to select more than one answer)

a)

Each p-orbital can hold a maximum of six electrons.

b)

The 3p-orbitals have a higher energy level than the 3s-orbital.

c)

The 4s orbital has a higher energy than the 3d orbital.

d)

The 1s-orbital has the same shape and energy as the 2s-orbital.

11.
What is the noble gas configuration for beryllium?
a)
[He]1s2
b)
[He]2s2
c)
[Li]2s1
d)
[Li]2s2
12.
What is the noble gas configuration for Sulfur?
a)
[Ar] 3p4
b)
[He] 3s2 3p4
c)
[Ne] 3s2 3p4
d)
[Na] 3s2 3p4
13.
 The diagram above represents two electrons with 
a)
a. opposite spins.
b)
 b. the same spin.
c)
c. different energies.
d)
d. different energy levels.
14.

Which shows the correct orbital diagram for Cobalt?

a)
b)
c)
d)
15.

This shape is that of a/n:

a)

s orbital

b)

p orbital

c)

d orbital

d)

f orbital

16.

How many orbitals are there in the d sublevel?

a)

1

b)

3

c)

5

d)

7

17.

Which of the following is NOT a possible pair of quantum numbers?

a)

2p

b)

2d

c)

4p

d)

4f

18.

What does the 1 in "1s" stand for?

a)

energy level

b)

s orbitals

c)

p orbitals

d)

the number of electrons

19.

What is the noble gas configuration for Cobalt?

a)

[Kr] 4s2 3d7

b)

[Kr] 4s2 4d7

c)

[Ar] 4s2 3d7

d)

[Ar] 4s2 4d7

20.

Which of the following is the electron configuration for Fluorine

a)
b)
c)
d)

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