Electron Configuration Practice

What is an electron configuration?

• A method of indicating the arrangement of electrons in a particular element or ion.

• B method of indicating the arrangement of protons in a particular element or ion.

• C method of indicating the arrangement of neutrons in a particular element or ion.

• D method of indicating the arrangement of atoms in a particular element or ion.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following best describes an electron configuration? It indicates the arrangement of electrons in a particular element or ion. It indicates the arrangement of protons in a particular element or ion. It indicates the arrangement of neutrons in a particular element or ion. It indicates the arrangement of atoms in a particular element or ion.

• It indicates the arrangement of electrons in a particular element or ion.

• It indicates the arrangement of protons in a particular element or ion.

• It indicates the arrangement of neutrons in a particular element or ion.

• It indicates the arrangement of atoms in a particular element or ion.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is the correct electron configuration for an atom with one electron?

• 1s^2

• 1s^1

• 2s^1

• 2p^1

Tags

NGSS.HS-PS1-1

In the electron configuration 1s2, what does the superscript '2' represent?

• Number of protons

• Number of neutrons

• Number of electrons

• Number of orbitals

Tags

NGSS.HS-PS1-1

Which orbital is filled in the electron configuration of Helium?

• 1s

• 2s

• 2p

• 3s

Tags

NGSS.HS-PS1-1

What is the electron configuration of an element with atomic number 2?

• 1s1

• 1s2

• 2s2

• 2p2

Tags

NGSS.HS-PS1-1

• 2,6

• 2,8

• 2,7

• 2,4

Tags

NGSS.HS-PS1-1

Label the three parts of an electron configuration:

d

e

f

electrons

group

family

period (row)

section

protons

block (orbital)

Match the following

• potassium

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹

• magnesium

• 1s² 2s² 2p⁶ 3s²

• neon

• 1s² 2s² 2p⁶

• silicon

• 1s² 2s² 2p⁴

• oxygen

• 1s² 2s² 2p⁶ 3s² 3p²

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Identify the element with the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶.

• Krypton (Kr)

• Xenon (Xe)

• Radon (Rn)

• Neon (Ne)

Tags

NGSS.HS-PS1-1