Unit 02: Electron Chemistry Review

Refer to the photoelectron spectrum of neon shown below to answer the question.

Which of the following statements best accounts for peak A being to the left of peaks B and C?

• The electron configuration of neon is 1s² 2s² 2p⁶.

• Neon has 8 electrons located in its valence shell.

• Core electrons of an atom experience a much higher effective nuclear charge than valence electrons

• Peaks B and C show first ionisation energies in neon, whereas peak A shows the second ionisation energy of neon

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Refer to the photoelectron spectrum of neon shown below to answer the question.

Which of the following statements best accounts for peak C being three time the height of peak B?

• The intensity of the photoelectron signal at a given energy is a measure of the number of electrons in that energy level.

• Electrons represented by peak B have approximately triple the binding energy than those represented by peak C

• In a photoelectron spectrum, as binding energy increases the relative number of electrons decreases.

• The height of peaks in a photoelectron spectrum does not have any relation to the structure of the atom

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Identify the Electron Configuration for Aluminum (Al)

• 1s² 2s² 2p⁶ 3s² 3p¹
• 1s² 2s² 2p⁶ 3s² 3p³
• 1s² 2s² 2p⁶ 3s² 4p¹

Tags

NGSS.HS-PS1-1

Which peak gives the binding energy of sodium's valence electrons

• A

• B

• C

• D

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NGSS.HS-PS1-1

What is the identity of element Z?

• Boron

• Carbon

• Neon

• Magnesium

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NGSS.HS-PS1-1

What is the electron configuration of P^-3 ?

• 1s² 2s² 2p⁶

• 1s² 2s² 2p³

• 1s² 2s² 2p⁰

• 1s² 2s²

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the electron configuration of Ag⁺⁴ ?

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d⁹

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹ 4d¹⁰

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d⁵

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹ 4d⁶

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NGSS.HS-PS1-1

What is the electron configuration of V^-1 ?

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d⁴

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹ 4d⁵

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d⁵

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d²

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NGSS.HS-PS1-1

Which of the following has the greatest wavelength

• Radio waves

• Microwaves

• Microwaves

• Infra red

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NGSS.HS-PS4-1

Which of the following has the greatest frequencies

• Radio waves

• Radar

• Microwaves

• Infra red

Tags

NGSS.HS-PS4-1