Which of the following BEST describes the purpose of electron configurations?

• To describe the location of electrons within the orbitals of an atom.

• To describe the location of protons within the orbitals of an atom.

• To show how many levels or "shells" an atom has.

• To calculate the total number of electrons in the atom.

Tags

NGSS.HS-PS1-1

1s²2s²2p⁶3s²3p5 is the electron configuration for which atom?

• Bromine

• Chlorine

• Argon

• Sulfur

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

[Ar]4s²3d¹⁰4p² is the noble gas configuration for which element?

• Silicon

• Argon

• Krypton

• Germanium

Tags

NGSS.HS-PS1-1

Which is the correct noble gas configuration for Iron?

• [Kr]4s²3d⁶

• [Kr]5s²4d¹⁰5p⁵

• [Ar]4s²3d⁶

• [Xe]5s²4d¹⁰5p⁵

Tags

NGSS.HS-PS1-1

The number of energy levels in a bohr model is determined by the...

• Block that the element is in

• Period that the element is in

• Group that the element is in

• Number of neutrons in the atom

The number of valence electrons on the outer ring of a bohr model is determined by the

• Block that the element is in

• Period that the element is in

• Group that the element is in

• Number of neutrons in the atom

Tags

NGSS.HS-PS1-1

How many valence electrons would Phosphorus have on it's outer ring of the bohr model?

• 2

• 5

• 7

• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following electron configurations is written incorrectly?

• 1s²2s²2p⁶3s²

• 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p³

• 1s²2s²2p⁶3s²3p⁶4s¹

• 1s²2s²2p⁴3s²

Tags

NGSS.HS-PS1-1

The electron configuration for the ION of Sulfur is the same as which noble gas?

• Argon

• Neon

• Krypton

• Helium

Tags

NGSS.HS-PS1-1

This image is the bohr model for which element?

• Neon

• Oxygen

• Beryllium

• Carbon

Tags

NGSS.MS-PS1-1