Mastering Orbital Diagrams and Electron Configurations in Chemistry

Mastering Orbital Diagrams and Electron Configurations in Chemistry

Assessment

Interactive Video

Chemistry, Physics, Science

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains orbital diagrams, which are visual representations of electron configurations. It starts with simple examples like hydrogen and helium, then progresses to more complex elements such as lithium, boron, carbon, neon, and magnesium. The tutorial emphasizes the importance of electron spin and the rules governing orbital filling, including the Pauli Exclusion Principle and the Aufbau Principle. These rules dictate that orbitals can hold up to two electrons with opposite spins and must be filled from the lowest energy level upwards.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electron configuration of hydrogen?

2p1

2s1

1s2

1s1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an orbital diagram, what does an arrow represent?

An atom

A neutron

A proton

An electron

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many electrons can the s orbital hold?

3

2

4

1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electron configuration of lithium?

1s2 2s1

1s2 2s2

1s1 2s2

1s2 2p1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many orbitals does the p sublevel have?

3

4

2

1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electron configuration of carbon?

1s2 2s1 2p1

1s2 2p2

1s2 2s2 2p6

1s2 2s2 2p2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In neon's electron configuration, how do the electrons fill the p orbitals?

All spin up first, then pair

Randomly

All pair up first

All spin down first

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