What is the electron configuration of potassium?

1s $$^2$$ 2s $$^2$$ 2p $$^6$$ 3s $$^2$$ 3p $$^6$$ 4s $$^1$$

1s $$^2$$ 2s $$^2$$ 2p $$^6$$ 3s $$^2$$ 3p $$^6$$

1s $$^2$$ 2s $$^2$$ 2p $$^6$$ 3s $$^1$$

1s $$^2$$ 2s $$^2$$ 2p $$^6$$ 3s $$^2$$ 3p $$^5$$

In orbital notation, what does a pair of arrows (↑↓) in a box represent?

Two electrons with opposite spins

Two electrons with the same spin

Which of the following is the correct electron configuration for sulfur?

1s $$^2$$ 2s $$^2$$ 2p $$^6$$ 3s $$^2$$ 3p $$^4$$

1s $$^2$$ 2s $$^2$$ 2p $$^6$$ 3s $$^2$$ 3p $$^6$$

1s $$^2$$ 2s $$^2$$ 2p $$^4$$ 3s $$^2$$ 3p $$^4$$

1s $$^2$$ 2s $$^2$$ 2p $$^6$$ 3s $$^1$$ 3p $$^5$$

According to Hund's rule, how will the three 2p orbitals be filled with three electrons?

Each electron will occupy separate orbitals with parallel spins.

All three electrons will pair up in one orbital.

Two electrons will pair up in one orbital, and the third will occupy a separate orbital.

Electrons will fill the lowest energy orbital available first.

What is the significance of the Pauli Exclusion Principle in electron configuration?

It states that no two electrons can have the same set of four quantum numbers.

It dictates the maximum number of electrons in an atom.

It describes the sequence in which orbitals are filled.

It determines the spin of electrons in an orbital.

How does the electron configuration of ions differ from that of neutral atoms?

Ions gain or lose electrons to achieve a stable electron configuration.

Ions have more protons than neutral atoms.

Ions have an incomplete outer shell.

Ions do not follow the Aufbau principle.

What is the purpose of the Aufbau diagram?

To depict the order in which orbitals are filled

To show the physical structure of an atom

To illustrate the spin of electrons

To represent chemical bonding between atoms

Electron Configuration Mastery Quiz

Quiz

•

Science

•

9th Grade

•

Practice Problem

•

Easy

•

NGSS

HS-PS1-1, HS-PS1-2

Standards-aligned

Nancy DiBattista

Used 4+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the maximum number of electrons that can occupy the s orbital at any given energy level?

1

2

4

8

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following electron configurations represents the nitrogen atom?

Tags

NGSS.HS-PS1-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the Aufbau principle, which orbital is filled immediately after the 3p orbital?

3d

4s

4p

3s

Tags

NGSS.HS-PS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many valence electrons does chlorine have?

5

6

7

8

Tags

NGSS.HS-PS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct electron configuration notation for magnesium?

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which rule states that electrons must occupy every orbital singly before any orbital is doubly occupied?

Pauli Exclusion Principle

Aufbau Principle

Hund's Rule

Heisenberg Uncertainty Principle

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the orbital notation for oxygen?

↑↓|↑↓|↑_↑_|_

↑↓|↑↓|↑↑|_

↑↓|↑_|↑_|↑_

↑↓|↑↓|↑↓|_

Tags

NGSS.HS-PS1-1

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Electron Configuration Mastery Quiz

20 questions

What is the maximum number of electrons that can occupy the s orbital at any given energy level?

Which of the following electron configurations represents the nitrogen atom?

According to the Aufbau principle, which orbital is filled immediately after the 3p orbital?

How many valence electrons does chlorine have?

What is the correct electron configuration notation for magnesium?

Which rule states that electrons must occupy every orbital singly before any orbital is doubly occupied?

What is the orbital notation for oxygen?

How many electrons can the d orbital hold?

Which of the following elements has a valence of 2?

What is the electron configuration of potassium?

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