Describe how the Pauli Exclusion Principle is applied in the electron configuration of helium.

Both electrons in helium occupy the $$1s$$ orbital with opposite spins.

Both electrons in helium occupy the $$1s$$ orbital with parallel spins.

One electron occupies the $$1s$$ orbital, and the other occupies the $$2s$$ orbital.

Both electrons in helium occupy the $$2s$$ orbital with opposite spins.

Which of the following is the correct orbital diagram for the element nitrogen?

$$1s^2 2s^2 2p^3$$ with all $$2p$$ electrons unpaired

$$1s^2 2s^2 2p^3$$ with all $$2p$$ electrons paired

$$1s^2 2s^2 2p^3$$ with two $$2p$$ electrons paired and one unpaired

$$1s^2 2s^2 2p^3$$ with one $$2p$$ electron paired and two unpaired

How does Hund's Rule apply to the electron configuration of oxygen?

Electrons fill the $$2p$$ orbitals with parallel spins before pairing up.

Electrons pair up in the $$2p$$ orbitals before each orbital is singly occupied.

Electrons fill the $$2s$$ orbital before the $$2p$$ orbitals.

Electrons fill the $$1s$$ orbital before the $$2s$$ orbital.

Explain the significance of valence electrons in chemical bonding.

Valence electrons are involved in forming chemical bonds and determine the reactivity of an element.

Valence electrons are not involved in chemical bonding and do not affect reactivity.

Valence electrons are only involved in ionic bonding.

Valence electrons are only involved in covalent bonding.

Understanding Electron Configurations

Authored by Madeline Lee

Science

10th Grade

NGSS covered

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electron configuration of a neutral oxygen atom?

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the Aufbau Principle, which orbital will be filled first?

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain how Hund's Rule affects the electron configuration of nitrogen.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements best describes the Pauli Exclusion Principle?

No two electrons in an atom can have the same set of four quantum numbers.

Electrons fill orbitals starting with the lowest energy level.

Electrons will fill degenerate orbitals singly before pairing.

Electrons in the same orbital must have opposite spins.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Draw the orbital diagram for carbon and explain the arrangement of electrons.

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many valence electrons does a chlorine atom have?

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fluorine

Chlorine

Bromine

Iodine

Tags

NGSS.HS-PS1-1

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Understanding Electron Configurations

What is the electron configuration of a neutral oxygen atom?

According to the Aufbau Principle, which orbital will be filled first?

Explain how Hund's Rule affects the electron configuration of nitrogen.

Which of the following statements best describes the Pauli Exclusion Principle?

Draw the orbital diagram for carbon and explain the arrangement of electrons.

How many valence electrons does a chlorine atom have?

Using the Aufbau Principle, determine the electron configuration for the element with atomic number 26.

Describe how the Pauli Exclusion Principle is applied in the electron configuration of helium.

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