Atomic Structure Review

Electron Configurations

Bohr Models: "Easy"

Vocabulary

Bohr Models: "Challenging"

100

Write the electron configuration for Helium.

1s²

100

Draw a Bohr Model for Hydrogen.

1 shell, 1 electron

100

What is an orbital?

An area of probability where up to 2 electrons can be found.

100

Draw a Bohr model for Calcium.

20 electrons. 2 valence.

1st shell: 2

2nd shell: 8

3rd shell: 8

4th shell: 2

200

Write the electron configuration for Barium.

1s²2s²2p⁶ 3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p⁶6s²

[Xe]6s²

200

What element has a Bohr model with two shells and 7 valence electrons?

Fluorine

200

What is a shell?

An energy level that encompasses multiple electrons and multiple subshells (except for the first shell).

200

Draw a Bohr Model for Germanium.

32 electrons. 4 valence.

1st shell: 2

2nd shell: 8

3rd shell: 18

4th shell: 4

300

Write the electron configuration for Yttrium.

1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹5s²

[Kr]4d¹5s²

300

Draw a Bohr Model for Aluminum.

3 shells, 13 electrons, 3 valence electrons

300

What is a subshell? Give an example.

An area within a shell where electrons can be found.

s, p, d and f are all subshells

300

Draw a Bohr Model for Yttrium.

39 electrons. 2 valence.

1st shell: 2

2nd shell: 8

3rd shell: 18

4th shell: 9

5th shell: 2

400

Write the electron configuration for Uranium.

1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰4f¹⁴5s²5p⁶5d¹⁰5f⁴6s²6p⁶7s²

[Rn]5f⁴7s²

400

Draw a Bohr Model for Calcium.

4 shells, 20 electrons, 2 valence electrons

400

What is the difference between the Bohr model and the Shell model?

The Shell Model shows where electrons are likely found based on probability, in their various subshells and orbitals. It is a more detailed/complex version of the Bohr model, which only shows the energy shells as rings.

400

Draw a Bohr model for Iridium.

77 electrons. 2 valence electrons.

1st shell: 2

2nd Shell: 8

3rd Shell: 18

4th Shell: 32

5th Shell: 15

6th Shell: 2

500

Write the electron configuration for Flerovium.

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p2

500

Draw a Bohr model for Potassium.

19 electrons. 4 shells. 1 valence electron.

500

What is a valence electron?

The electrons on the outermost shell of an atom.

500

Draw a Bohr model for Polonium.

84 electrons. 6 shells. 6 valence electrons.

1st shell: 2

2nd Shell: 8

3rd Shell: 18

4th Shell: 32

5th Shell: 18

6th Shell: 6