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quantum no. ( end )

Total questions: 31

Worksheet time: 16mins

Name
Class
Date
1.
Which type of orbital is shaped like a sphere?
a)
s orbital
b)
p orbital
c)
d orbital
d)
f orbital
2.
Which of the following is NOT a possible pair of quantum numbers?
a)
2p
b)
3d
c)
4p
d)
3f
3.

Any given orbital may hold a maximum of __ electrons

a)

2

b)

8

c)

18

d)

32

4.

There may be a maximum of ___ p orbitals at a given energy levle.

a)

2

b)

3

c)

6

d)

8

5.

The first energy level to have d-orbitals is:

a)

1

b)

2

c)

3

d)

4

6.

Electrons that have not been excited by additional energy are said to be at:

a)

low level

b)

set state

c)

baseline

d)

ground state

7.

Which is not true when ml = -2, -1, 0, 1, 2

a)

d orbitals

b)

energy level 3

c)

l = 0-2

d)

3 axes

8.

This shape is that of a/n:

a)

s orbital

b)

p orbital

c)

d orbital

d)

f orbital

9.

The spin of an electron is represented by this variable:

a)

n

b)

l

c)

ml

d)

ms

10.

What are the shapes of p orbitals ?

a)

cloverleaf

b)

spherical

c)

dumbbell

11.

How many 4d orbitals are there in an atom?

a)

1

b)

3

c)

5

12.

Which orbitals cannot exist

a)

3p

b)

4d

c)

3f

d)

6s

13.

Write a set of quantum numbers for a 4d orbital.

a)

(4,1,0, -1/2)

b)

(4,2,-2, +1/2)

c)

(4,0,2,-1/2)

14.

Which set of Quantum numbers is not allowed

a)

(3,1,1,-1/2)

b)

(2,1,-2,+1/2)

c)

(4,2,-1,-1/2)

15.

Identify the subshell in which electrons with the following quantum numbers are found:

n = 3, l = 2

a)

3s

b)

3p

c)

3d

16.

How many orbitals (including sub orbitals) are found in a shell with n = 2?

a)

2

b)

3

c)

4

17.

The maximum number of electrons with quantum numbers with n=3 and l=2 is

a)

2

b)

4

c)

6

d)

10

18.

The number of electrons with n=4, l=1 is

a)

2

b)

4

c)

6

d)

10

19.

How many electrons can occupy any single subshell orbital?

a)

1

b)

2

c)

6

d)

10

20.
How many orbitals are available to hold electrons in the 4th energy level (n=4)?
a)
4
b)
8
c)
16
d)
32
21.

When atoms _____________ energy, their electrons move to higher energy levels. These electrons _____________ energy by emitting light when they return to lower energy levels.

a)

lose, absorb

b)

absorb, lose

c)

lose, lose

d)

absorb, absorb

22.

Which quantum number represents the orientation of the orbital?

a)

principal quantum number

b)

azimuthal (angular momentum) quantum number

c)

magnetic quantum number

d)

spin quantum number

23.

What is the correct representation for an orbital which has an "n" value of 4 and an "l" value of 2?

a)

4s

b)

4d

c)

4p

d)

4f

24.

For a principle quantum number, "n", equal to 6, is it possible for "l" to be equal to 7?

a)

Yes

b)

No

25.

What is the correct representation for an orbital which has an "n" value of 3 and an "l" value of 1?

a)

3p

b)

3s

c)

3d

d)

3f

26.

How many sublevels are at the 3rd energy level?

a)

1

b)

3

c)

4

d)

8

27.

If quantum number "n" = 3, what are the possible values for "L"

a)

0, 1, 2, 3, 4...

b)

-1, -2, -3

c)

0, 1, 2

d)

1, 2

28.

"L" Is a symbol to

a)

subsuidary quantum no.

b)

angular momentum quantum no.

c)

azmithual quantum no,

29.
An area of high probability of finding an electron 90% of the time is called a(n)
a)
nucleus
b)
sublevel
c)
orbital
d)
energy level
30.
How many electrons can the d sublevel hold?
a)
8
b)
10
c)
2
d)
4
31.
Which orbital has the least amount of energy? 
a)
p orbital
b)
d orbital
c)
s orbital 
d)
What is an orbital?