Module 2: Chapter 5 - Electrons and structure

Question 1

Define a shell in relation to orbitals and electrons

Answer 1

a shell is a group of atomic orbitals with the same principal quantum number (main energy level)

Question 2

How many electrons does the 1st shell hold

Answer 2

2 electrons

Question 3

*

How many electrons does the 2nd shell hold

Answer 3

8

Question 4

How many electrons does the 4th shell hold

Answer 4

32

Question 4

How many electrons does the 3rd shell hold

Answer 4

18

Question 5

What is an orbital

Answer 5

Areas within atoms where there is a high probability of finding electrons

Question 6

what is the shape of an S orbital

Answer 6

spherical

Question 7

what is the shape of an P orbital

Answer 7

dumbell

Question 8

what is the shape of an D orbital and how many occur in energy levels

Answer 8

1. various shapes
2. 5 occur in all energy levels except the first and second

Question 9

what is the shape of an F orbital and how many occur in energy levels

Answer 9

1. various shapes
2. seven

Question 10

What is the strucure of 1s

Answer 10

1. S orbital
2. 2 electrons
3. Total of 1 orbital

Question 11

**

What is the strucure of 2s

Answer 11

1. S orbital
2. 3 P orbitals
3. holds 8 electrons
4. Total of 4 orbitals

Question 12

What is the strucure of 3s

Answer 12

1. S orbital
2. 3 P orbitals
3. 5 D orbitals
4. holds 18 electrons
5. Total of 8 orbitals

Question 13

**

What is the strucure of 4s

Answer 13

1. S orbital
2. 3 P orbitals
3. 5 D orbitals
4. 7 F orbitals
5. holds 32 electrons
6. Total of 16 orbitals