9. Quantum Mechanics

Quantum Numbers: Number of Electrons

9. Quantum Mechanics

# Quantum Numbers: Number of Electrons - Video Tutorials & Practice Problems

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The **Quantum Numbers** can give both the quantity and location of electrons within a given atom.

Quantum Theory & Electrons

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concept

## Quantum Numbers: Number of Electrons

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example

## Quantum Numbers: Number of Electrons Example 1

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## Quantum Numbers: Number of Electrons

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## Quantum Numbers: Number of Electrons Example 2

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Problem

ProblemDetermine the number of electrons that can have the following set of quantum numbers:n = 3, m_{l} = 0.

A

2 e

^{-}B

4 e

^{-}C

6 e

^{-}D

3 e

^{-}6

Problem

ProblemDetermine the number of electrons that can have the following set of quantum numbers:n = 2, m_{s} = –1/2.

A

2 e

^{-}B

4 e

^{-}C

6 e

^{-}D

3 e

^{-}7

Problem

ProblemDetermine the number of electrons that can have the following set of quantum numbers.

n = 4, l = 3, m_{l} = – 1

A

2 e

^{-}B

4 e

^{-}C

6 e

^{-}D

3 e

^{-}8

Problem

ProblemDetermine the number of electrons that can have the following set of quantum numbers.

n = 4, m_{L} = – 1, m_{s} = –1/2

A

2 e

^{-}B

4 e

^{-}C

6 e

^{-}D

3 e

^{-}## Do you want more practice?

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PRACTICE PROBLEMS AND ACTIVITIES (10)

- What is the maximum number of electrons that can occupy each of the following subshells? (a) 3s, (b) 2p, (c) 4...
- What is the maximum number of electrons in an atom that can have the following quantum numbers? (a) n = 3, ml...
- What is the maximum number of electrons in an atom whose highest-energy electrons have the principal quantum n...
- How many electrons in an atom could have these sets of quantum numbers?
- What is the maximum number of electrons in an atom that can have the following quantum numbers?
- What is the maximum number of electrons that can occupy each of the following subshells?
- What is the maximum number of electrons that can exist in the g sublevel?
- Enter the maximum number of electrons in each type of sublevel (s, p, d, and f, respectively).
- What's the maximum amount of electrons that will fit on an outermost shell of an atom?
- Type in the maximum number of electrons that can be present in each shell or subshell below.