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Study Guide For The Electron

Name

Date

Period

Study Guide for the Electron

1. What is an orbital or an atomic orbital?

the most probable location of an electron in the quantum mechanical model

2. How many electrons can occupy each atomic orbital?

2 electrons

3. What percent chance do you have of finding an electron in its orbital?

90%

4. How many orbitals are found in a d-sublevel?

5 orbitals

5. In order for electrons to occupy the same atomic orbital, electrons must have

opposite

spins.

6. The letter, n, is used to represent the

principal energy level

. In other words,

n =2 is the same thing as saying the second energy level.

7. How many electrons can occupy a f-sublevel?

14 electrons

8. Which sublevel has a spherical shape?

s sublevel

9. What sublevel has a dumbbell shape?

p sublevel

10. What sublevel has three atomic orbitals?

p sublevel

11. What element has the electron configuration of 1s

12. What is wrong with this electron configuration: 1s

? Name the specific rule being

violated in this electron configuration.

The p sublevel can only hold 6 electrons because it has 3 orbitals. This is a violation of

Pauli’s Exclusion Principle.

13. For the electron configuration, 1s

, how many electrons are in the second energy

level?

3 electrons (2 in “s” and 1 in “p”)

14. For the electron configuration, 1s

, which sublevels are incomplete?

Also specify the energy level of the sublevel.

4s and 3d

Study Guide For The Electron