Electron Configuration Practice Worksheet

Electron Configuration Practice Worksheet

Part 1. For each element, write the (1) orbital diagram and (2) ground state electron configuration. Determine how many valence electrons the element has. Valence

electrons

1)  sodium Orbital diagram: ______

E. configuration: ______

2)  phosphorous Orbital diagram: ______

E. configuration: ______

3)  carbon Orbital diagram: ______

E. configuration: ______

4)  calcium Orbital diagram: ______

E. configuration: ______

5)  neon Orbital diagram: ______

E. configuration: ______

Part 2. Write the (1) ground state electron configuration, (2) noble gas notation, (3) number of valence electrons, and (4) Lewis dot structure for the following elements.

6) oxygen E. configuration: ______

Noble gas notation: ______

Valence electrons: _____ Lewis Dot Structure: ______

7) magnesium E. configuration: ______

Noble gas notation: ______

Valence electrons: _____ Lewis Dot Structure: ______

8) chlorine E. configuration: ______

Noble gas notation: ______

Valence electrons: _____ Lewis Dot Structure: ______

9) boron E. configuration: ______

Noble gas notation: ______

Valence electrons: _____ Lewis Dot Structure: ______

10) potassium E. configuration: ______

Noble gas notation: ______

Valence electrons: _____ Lewis Dot Structure: ______

11) bromine E. configuration: ______

Noble gas notation: ______

Valence electrons: _____ Lewis Dot Structure: ______

12) lithium E. configuration: ______

Noble gas notation: ______

Valence electrons: _____ Lewis Dot Structure: ______

13) nitrogen E. configuration: ______

Noble gas notation: ______

Valence electrons: _____ Lewis Dot Structure: ______

Part 3. Determine what elements are indicated by the following electron configurations:

14)  1s22s22p63s23p4 ______# valence electrons _____ Dot structure ______

15)  1s22s22p63s23p64s1 ______# valence electrons _____ Dot structure ______

16)  1s22s22p5 ______# valence electrons _____ Dot structure ______

17)  [Ne]3s23p1 ______# valence electrons _____ Dot structure ______

18)  [Ar]4s23d104p3 ______# valence electrons _____ Dot structure ______

Part 4. Analyze the following electron configurations. Are they correct? If not, correct them.

19)  Calcium: 1s22s22p63s23p8 Correct? YES / NO Correction: ______

If incorrect, explain why: ______

20)  Aluminum: 1s22s22p63p3 Correct? YES / NO Correction: ______

If incorrect, explain why: ______

21)  Silicon: [Kr]3s23p2 Correct? YES / NO Correction: ______

If incorrect, explain why: ______

22)  Nitrogen:

Correct? YES / NO Correction: ______

If incorrect, explain why: ______

23)  Beryllium:

Correct? YES / NO Correction: ______

If incorrect, explain why: ______

24)  Fluorine:

Correct? YES / NO Correction: ______

If incorrect, explain why: ______