A-2 Quantum Model

Question 1

Possible sublevels within the 1st energy level (n = 1)

Answer 1

1s

Question 2

Possible sublevels within the 2nd energy level (n = 2)

Answer 2

2s, 2p

Question 3

Possible sublevels within the 3rd energy level (n = 3)

Answer 3

3s, 3p, 3d

Question 4

Possible sublevels within the 4th energy level (n = 4)

Answer 4

4s, 4p, 4d, 4f

Question 5

Number of orbitals in an s sublevel

Answer 5

1

Question 6

Number of orbitals in a p sublevel

Answer 6

3

Question 7

Number of orbitals in a d sublevel

Answer 7

5

Question 8

Number of orbitals in an f sublevel

Answer 8

7

Question 9

Maximum number of electrons in a single s orbital

Answer 9

2

Question 10

Maximum number of electrons in a single p orbital

Answer 10

2

Question 11

Maximum number of electrons in a single d orbital

Answer 11

2

Question 12

Maximum number of electrons in a single f orbital

Answer 12

2

Question 13

Maximum number of electrons in an s sublevel

Answer 13

2

Question 14

Maximum number of electrons in a p sublevel

Answer 14

6

Question 15

Maximum number of electrons in a d sublevel

Answer 15

10

Question 16

Maximum number of electrons in a f sublevel

Answer 16

14

Question 17

Maximum number of electrons in the 1st energy level (n=1)

Answer 17

2

Question 18

Maximum number of electrons in the 2nd energy level (n=2)

Answer 18

8

Question 19

Maximum number of electrons in the 3rd energy level (n=3)

Answer 19

18

Question 20

Maximum number of electrons in the 4th energy level (n=4)

Answer 20

32

Question 21

What is ionization energy?

Answer 21

Energy required to remove an electron from an atom or ion (always positive)

Question 22

What is electron affinity?

Answer 22

Energy change that occurs when an atom or ion gains an electrons - Often negative but can be positive

Question 23

Write an equation that describes the 1st ionization energy for Calcium

Answer 23

Ca → Ca⁺ + e^- delta H is always positive

Question 24

Write an equation that describes the 2nd ionization energy for Calcium

Answer 24

Ca⁺ → Ca^{<span>2+</span>} + e^- delta H is always positive

Question 25

Write an equation that describes the 3rd ionization energy for Calcium

Answer 25

Ca²⁺ → Ca³⁺ + e^- delta H is always positive

Question 26

Write an equation that describes the electron affinity of oxygen.

Answer 26

O + e^- → O^- delta H is usually negative but can be positive

Question 27

Write an equation that describes the 2nd electron affinity of oxygen.

Answer 27

O^- + e^- → O^2- delta H is usually negative but can be positive

Question 28

What happens to atomic radius as you move across a period?

Answer 28

Atom gets smaller

Question 29

What happens to ionization energy (IE) as you move across a period?

Answer 29

IE get larger

Question 30

What happens to electron affinity (EA) as you move across a period?

Answer 30

EA get more negative

Question 31

What happens to electron affinity (EA) as you move down a group?

Answer 31

EA get more positive

Question 32

What happens to ionization energy (IE) as you move down a group?

Answer 32

IE goes down

Question 33

What happens to atomic radius as you move down a group?

Answer 33

Atomic radius gets larger

Question 34

A positive ion is (larger / smaller) than its neutral parent atom.

Answer 34

smaller - fewer electron - electron repulsions

Question 35

A negative ion is (larger / smaller) than its neutral parent atom.

Answer 35

larger - more electron - electron repulsions

Question 36

For a pair of isoelectronic ions, the more negative ion is (larger / smaller) than the more positive ion.

Answer 36

larger - more positive ion has a larger nuclear charge so it pulls its electrons in more effectively than the more negative ion which has a smaller nuclear charge.