Chemistry Chapter 4 Quantum Numbers

1.

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30 sec

1 pt

What are quantum numbers?

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Answer explanation

a set of four numbers that completely describe the location and the energy for each electron.

2.

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30 sec

1 pt

What 4 things do quantum numbers tell us?

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Answer explanation

1. Distance from nucleus 2. Shape 3. Position 4. Spin

3.

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30 sec

1 pt

Tell what the 4 quantum numbers represent

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Answer explanation

First: principal energy level of the electron. Second: Sublevel (shape) s,p,d,f Third: electron position within the sublevel Fourth: Spin of the electrons

4.

Open Ended

30 sec

1 pt

What is the principle quantum number (n)?

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Answer explanation

It is the first number and identifies the principle energy level - it indicates the average or most likely distance from the nucleus where the electron resides - positive integers only

5.

Open Ended

30 sec

1 pt

What is the maximum number of electrons that can be found in an energy level?

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Answer explanation

2n²

6.

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30 sec

1 pt

What does n represent in the formula 2n²?

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Answer explanation

n represents the principle energy level

7.

Open Ended

30 sec

1 pt

What is the second quantum number(I)?

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Answer explanation

the second number indicates the sublevel - can only be numbers 0-3 and must be smaller than the first number

8.

Open Ended

30 sec

1 pt

What are the four different energy sublevels?

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Answer explanation

s, p, d, and f They describe the different shape that the orbitals can have

9.

Open Ended

30 sec

1 pt

What number represents the s sublevels?

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Answer explanation

0

10.

Open Ended

30 sec

1 pt

What number represents the p sublevel

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Answer explanation

1

11.

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30 sec

1 pt

What number represents the d sublevel?

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Answer explanation

2

12.

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30 sec

1 pt

What number represents the f sublevel?

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Answer explanation

3

13.

Open Ended

30 sec

1 pt

What is the third quantum number (ml)

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Answer explanation

describes the electron position within the sublevel or orbital - it must be equal to or smaller than the second number

14.

Open Ended

30 sec

1 pt

How many possible orbitals in s, p, d and f?

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Answer explanation

s-1 0 p-3 -1,0,1 d-5 -2,-1,0,1,2 f-7 -3,-2,-1,0,1,2,3

15.

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30 sec

1 pt

How many different numbers can the third quantum number be?

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Answer explanation

-3 through 3 -3,-2,-1,0,1,2,3

16.

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30 sec

1 pt

What is the rule about the second number related to the first number? An the third number related to the second number?

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Answer explanation

The second number must be smaller than the first number. The third number must be the same or smaller than the second number

17.

Open Ended

30 sec

1 pt

What is the fourth quantum number (ms)

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Answer explanation

Spin of the electrons either 1/2 for counter clockwise or -1/2 for clockwise spin

18.

Open Ended

30 sec

1 pt

T/F No two electrons in the same atom have the same 4 quantum numbers

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Answer explanation

True - they will always have at least one different because they cannot both spin the same direction.

19.

Open Ended

30 sec

1 pt

How many electrons can be present in each orbital?

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Answer explanation

2 electrons -s there are only 2 electrons because there is 1 orbital -p there are 6 because there are 3 orbitals -d there are 10 because there are 5 orbitals -f there are 14 because there are 7 orbitals

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